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CVE-2020-6820 CISA KEV · Actively exploited

Mozilla: Use-after-free when handling a ReadableStream

CVSS score

8.8

EPSS probability

%7.1

Risk score

1.2

Published

6 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
A patch is available only for some products or versions

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Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2020-6820 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

A flaw was found in Mozilla's Firefox. A race condition can occur when handling a ReadableStream causing a use-after-free memory issue. The highest threat from this vulnerability are to data confidentiality and integrity as well as system availability.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2020-6820 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Red Hatred_hat_enterprise_linux_5:firefox View
2Red Hatred_hat_enterprise_linux_5:thunderbird View
3Red Hat6Client-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
4Red Hat6Client-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
5Red Hat6Client-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
6Red Hat6Client-6.10.z:firefox-0:68.6.1-1.el6_10.src View
7Red Hat6Client-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
8Red Hat6Client-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
9Red Hat6Client-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
10Red Hat6Client-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
11Red Hat6Client-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
12Red Hat6Client-6.10.z:thunderbird-0:68.7.0-1.el6_10.i686 View
13Red Hat6Client-6.10.z:thunderbird-0:68.7.0-1.el6_10.ppc64 View
14Red Hat6Client-6.10.z:thunderbird-0:68.7.0-1.el6_10.s390x View
15Red Hat6Client-6.10.z:thunderbird-0:68.7.0-1.el6_10.src View
16Red Hat6Client-6.10.z:thunderbird-0:68.7.0-1.el6_10.x86_64 View
17Red Hat6Client-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.i686 View
18Red Hat6Client-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.ppc64 View
19Red Hat6Client-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.s390x View
20Red Hat6Client-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.x86_64 View
21Red Hat6Client-optional-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
22Red Hat6Client-optional-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
23Red Hat6Client-optional-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
24Red Hat6Client-optional-6.10.z:firefox-0:68.6.1-1.el6_10.src View
25Red Hat6Client-optional-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
26Red Hat6Client-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
27Red Hat6Client-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
28Red Hat6Client-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
29Red Hat6Client-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
30Red Hat6ComputeNode-optional-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
31Red Hat6ComputeNode-optional-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
32Red Hat6ComputeNode-optional-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
33Red Hat6ComputeNode-optional-6.10.z:firefox-0:68.6.1-1.el6_10.src View
34Red Hat6ComputeNode-optional-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
35Red Hat6ComputeNode-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
36Red Hat6ComputeNode-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
37Red Hat6ComputeNode-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
38Red Hat6ComputeNode-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
39Red Hat6Server-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
40Red Hat6Server-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
41Red Hat6Server-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
42Red Hat6Server-6.10.z:firefox-0:68.6.1-1.el6_10.src View
43Red Hat6Server-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
44Red Hat6Server-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
45Red Hat6Server-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
46Red Hat6Server-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
47Red Hat6Server-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
48Red Hat6Server-optional-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
49Red Hat6Server-optional-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
50Red Hat6Server-optional-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
51Red Hat6Server-optional-6.10.z:firefox-0:68.6.1-1.el6_10.src View
52Red Hat6Server-optional-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
53Red Hat6Server-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
54Red Hat6Server-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
55Red Hat6Server-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
56Red Hat6Server-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
57Red Hat6Server-optional-6.10.z:thunderbird-0:68.7.0-1.el6_10.i686 View
58Red Hat6Server-optional-6.10.z:thunderbird-0:68.7.0-1.el6_10.ppc64 View
59Red Hat6Server-optional-6.10.z:thunderbird-0:68.7.0-1.el6_10.s390x View
60Red Hat6Server-optional-6.10.z:thunderbird-0:68.7.0-1.el6_10.src View
61Red Hat6Server-optional-6.10.z:thunderbird-0:68.7.0-1.el6_10.x86_64 View
62Red Hat6Server-optional-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.i686 View
63Red Hat6Server-optional-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.ppc64 View
64Red Hat6Server-optional-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.s390x View
65Red Hat6Server-optional-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.x86_64 View
66Red Hat6Workstation-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
67Red Hat6Workstation-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
68Red Hat6Workstation-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
69Red Hat6Workstation-6.10.z:firefox-0:68.6.1-1.el6_10.src View
70Red Hat6Workstation-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
71Red Hat6Workstation-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
72Red Hat6Workstation-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
73Red Hat6Workstation-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
74Red Hat6Workstation-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
75Red Hat6Workstation-6.10.z:thunderbird-0:68.7.0-1.el6_10.i686 View
76Red Hat6Workstation-6.10.z:thunderbird-0:68.7.0-1.el6_10.ppc64 View
77Red Hat6Workstation-6.10.z:thunderbird-0:68.7.0-1.el6_10.s390x View
78Red Hat6Workstation-6.10.z:thunderbird-0:68.7.0-1.el6_10.src View
79Red Hat6Workstation-6.10.z:thunderbird-0:68.7.0-1.el6_10.x86_64 View
80Red Hat6Workstation-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.i686 View
81Red Hat6Workstation-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.ppc64 View
82Red Hat6Workstation-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.s390x View
83Red Hat6Workstation-6.10.z:thunderbird-debuginfo-0:68.7.0-1.el6_10.x86_64 View
84Red Hat6Workstation-optional-6.10.z:firefox-0:68.6.1-1.el6_10.i686 View
85Red Hat6Workstation-optional-6.10.z:firefox-0:68.6.1-1.el6_10.ppc64 View
86Red Hat6Workstation-optional-6.10.z:firefox-0:68.6.1-1.el6_10.s390x View
87Red Hat6Workstation-optional-6.10.z:firefox-0:68.6.1-1.el6_10.src View
88Red Hat6Workstation-optional-6.10.z:firefox-0:68.6.1-1.el6_10.x86_64 View
89Red Hat6Workstation-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.i686 View
90Red Hat6Workstation-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.ppc64 View
91Red Hat6Workstation-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.s390x View
92Red Hat6Workstation-optional-6.10.z:firefox-debuginfo-0:68.6.1-1.el6_10.x86_64 View
93Red Hat7Client-7.8.Z:firefox-0:68.6.1-1.el7_8.i686 View
94Red Hat7Client-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64 View
95Red Hat7Client-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64le View
96Red Hat7Client-7.8.Z:firefox-0:68.6.1-1.el7_8.s390x View
97Red Hat7Client-7.8.Z:firefox-0:68.6.1-1.el7_8.src View
98Red Hat7Client-7.8.Z:firefox-0:68.6.1-1.el7_8.x86_64 View
99Red Hat7Client-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.i686 View
100Red Hat7Client-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64 View
101Red Hat7Client-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64le View
102Red Hat7Client-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.s390x View
103Red Hat7Client-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.x86_64 View
104Red Hat7Client-7.8.Z:thunderbird-0:68.7.0-1.el7_8.ppc64le View
105Red Hat7Client-7.8.Z:thunderbird-0:68.7.0-1.el7_8.src View
106Red Hat7Client-7.8.Z:thunderbird-0:68.7.0-1.el7_8.x86_64 View
107Red Hat7Client-7.8.Z:thunderbird-debuginfo-0:68.7.0-1.el7_8.ppc64le View
108Red Hat7Client-7.8.Z:thunderbird-debuginfo-0:68.7.0-1.el7_8.x86_64 View
109Red Hat7Client-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.i686 View
110Red Hat7Client-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64 View
111Red Hat7Client-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64le View
112Red Hat7Client-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.s390x View
113Red Hat7Client-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.src View
114Red Hat7Client-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.x86_64 View
115Red Hat7Client-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.i686 View
116Red Hat7Client-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64 View
117Red Hat7Client-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64le View
118Red Hat7Client-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.s390x View
119Red Hat7Client-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.x86_64 View
120Red Hat7Server-7.8.Z:firefox-0:68.6.1-1.el7_8.i686 View
121Red Hat7Server-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64 View
122Red Hat7Server-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64le View
123Red Hat7Server-7.8.Z:firefox-0:68.6.1-1.el7_8.s390x View
124Red Hat7Server-7.8.Z:firefox-0:68.6.1-1.el7_8.src View
125Red Hat7Server-7.8.Z:firefox-0:68.6.1-1.el7_8.x86_64 View
126Red Hat7Server-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.i686 View
127Red Hat7Server-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64 View
128Red Hat7Server-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64le View
129Red Hat7Server-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.s390x View
130Red Hat7Server-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.x86_64 View
131Red Hat7Server-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.i686 View
132Red Hat7Server-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64 View
133Red Hat7Server-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64le View
134Red Hat7Server-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.s390x View
135Red Hat7Server-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.src View
136Red Hat7Server-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.x86_64 View
137Red Hat7Server-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.i686 View
138Red Hat7Server-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64 View
139Red Hat7Server-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64le View
140Red Hat7Server-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.s390x View
141Red Hat7Server-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.x86_64 View
142Red Hat7Server-optional-7.8.Z:thunderbird-0:68.7.0-1.el7_8.ppc64le View
143Red Hat7Server-optional-7.8.Z:thunderbird-0:68.7.0-1.el7_8.src View
144Red Hat7Server-optional-7.8.Z:thunderbird-0:68.7.0-1.el7_8.x86_64 View
145Red Hat7Server-optional-7.8.Z:thunderbird-debuginfo-0:68.7.0-1.el7_8.ppc64le View
146Red Hat7Server-optional-7.8.Z:thunderbird-debuginfo-0:68.7.0-1.el7_8.x86_64 View
147Red Hat7Workstation-7.8.Z:firefox-0:68.6.1-1.el7_8.i686 View
148Red Hat7Workstation-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64 View
149Red Hat7Workstation-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64le View
150Red Hat7Workstation-7.8.Z:firefox-0:68.6.1-1.el7_8.s390x View
151Red Hat7Workstation-7.8.Z:firefox-0:68.6.1-1.el7_8.src View
152Red Hat7Workstation-7.8.Z:firefox-0:68.6.1-1.el7_8.x86_64 View
153Red Hat7Workstation-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.i686 View
154Red Hat7Workstation-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64 View
155Red Hat7Workstation-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64le View
156Red Hat7Workstation-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.s390x View
157Red Hat7Workstation-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.x86_64 View
158Red Hat7Workstation-7.8.Z:thunderbird-0:68.7.0-1.el7_8.ppc64le View
159Red Hat7Workstation-7.8.Z:thunderbird-0:68.7.0-1.el7_8.src View
160Red Hat7Workstation-7.8.Z:thunderbird-0:68.7.0-1.el7_8.x86_64 View
161Red Hat7Workstation-7.8.Z:thunderbird-debuginfo-0:68.7.0-1.el7_8.ppc64le View
162Red Hat7Workstation-7.8.Z:thunderbird-debuginfo-0:68.7.0-1.el7_8.x86_64 View
163Red Hat7Workstation-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.i686 View
164Red Hat7Workstation-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64 View
165Red Hat7Workstation-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.ppc64le View
166Red Hat7Workstation-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.s390x View
167Red Hat7Workstation-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.src View
168Red Hat7Workstation-optional-7.8.Z:firefox-0:68.6.1-1.el7_8.x86_64 View
169Red Hat7Workstation-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.i686 View
170Red Hat7Workstation-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64 View
171Red Hat7Workstation-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.ppc64le View
172Red Hat7Workstation-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.s390x View
173Red Hat7Workstation-optional-7.8.Z:firefox-debuginfo-0:68.6.1-1.el7_8.x86_64 View
174Red HatAppStream-8.0.0.Z.E4S:firefox-0:68.6.1-1.el8_0.ppc64le View
175Red HatAppStream-8.0.0.Z.E4S:firefox-0:68.6.1-1.el8_0.src View
176Red HatAppStream-8.0.0.Z.E4S:firefox-0:68.6.1-1.el8_0.x86_64 View
177Red HatAppStream-8.0.0.Z.E4S:firefox-debuginfo-0:68.6.1-1.el8_0.ppc64le View
178Red HatAppStream-8.0.0.Z.E4S:firefox-debuginfo-0:68.6.1-1.el8_0.x86_64 View
179Red HatAppStream-8.0.0.Z.E4S:firefox-debugsource-0:68.6.1-1.el8_0.ppc64le View
180Red HatAppStream-8.0.0.Z.E4S:firefox-debugsource-0:68.6.1-1.el8_0.x86_64 View
181Red HatAppStream-8.0.0.Z.E4S:thunderbird-0:68.7.0-1.el8_0.ppc64le View
182Red HatAppStream-8.0.0.Z.E4S:thunderbird-0:68.7.0-1.el8_0.src View
183Red HatAppStream-8.0.0.Z.E4S:thunderbird-0:68.7.0-1.el8_0.x86_64 View
184Red HatAppStream-8.0.0.Z.E4S:thunderbird-debuginfo-0:68.7.0-1.el8_0.ppc64le View
185Red HatAppStream-8.0.0.Z.E4S:thunderbird-debuginfo-0:68.7.0-1.el8_0.x86_64 View
186Red HatAppStream-8.0.0.Z.E4S:thunderbird-debugsource-0:68.7.0-1.el8_0.ppc64le View
187Red HatAppStream-8.0.0.Z.E4S:thunderbird-debugsource-0:68.7.0-1.el8_0.x86_64 View
188Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-0:68.6.1-1.el8_1.aarch64 View
189Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-0:68.6.1-1.el8_1.ppc64le View
190Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-0:68.6.1-1.el8_1.s390x View
191Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-0:68.6.1-1.el8_1.src View
192Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-0:68.6.1-1.el8_1.x86_64 View
193Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debuginfo-0:68.6.1-1.el8_1.aarch64 View
194Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debuginfo-0:68.6.1-1.el8_1.ppc64le View
195Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debuginfo-0:68.6.1-1.el8_1.s390x View
196Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debuginfo-0:68.6.1-1.el8_1.x86_64 View
197Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debugsource-0:68.6.1-1.el8_1.aarch64 View
198Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debugsource-0:68.6.1-1.el8_1.ppc64le View
199Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debugsource-0:68.6.1-1.el8_1.s390x View
200Red HatAppStream-8.1.0.Z.MAIN.EUS:firefox-debugsource-0:68.6.1-1.el8_1.x86_64 View
Total affected vendors: 1|Products: 200

RED HAT CSAF/VEX: Product Impact Check

Does this CVE affect my Red Hat product?

The results come directly from the Red Hat CSAF VEX product status; they are not estimates.

Affected

Red Hat bu ürün sürümünü etkilenen olarak işaretliyor.

Red Hat fixes

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.8cvss_v3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HRed Hat

Patch and Remediation Guide

Solution & Remediation Advisory

Partial patch

16 düzeltme kanıtı bulundu; en az 2 ürün veya sürüm hâlâ etkileniyor ya da inceleniyor.

redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.

Open source
redhat

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.

Open source
redhat

Out of support scope

reference

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.

Open source
reference

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.

Open source
reference

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

This CVE is marked as actively exploited in the CISA KEV catalogue, but no verified, downloadable public PoC or Metasploit module has been found yet. Evidence of active exploitation does not mean that public exploit code exists.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-6820 is associated with the following CWEs:

CWE-416: Use After Free

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-6820 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekiyor

Official Sources and Advisories

Canonical URLvendor-advisoryRHBZ#1820878vendor-advisoryhttps://www.cve.org/CVERecord?id=CVE-2020-6820vendor-advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2020-6820vendor-advisoryhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-11/#CVE-2020-6820vendor-advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalogvendor-advisoryFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.patchFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.patchFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, Firefox must be restarted for the changes to take effect.patchFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 All running instances of Thunderbird must be restarted for the update to take effect.patch

CVSS Vector Radar Chart

8.8 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.RequiredConfidentialityLowIntegrityHighAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User Interaction—
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)High
Availability (Erişilebilirlik)High

Kısmi yama

16 düzeltme kanıtı bulundu; en az 2 ürün veya sürüm hâlâ etkileniyor ya da inceleniyor.

Follow the vendor

RH
Red Hat logo
Red Hat

Weakness Type (CWE & CAPEC)

CWE-416

Similar Vulnerabilities

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