Back to the CVE list
CVE-2020-13934Suited to automated attack · CISA

Vulnerability in N/a Apache Tomcat

CVSS score

7.5

EPSS probability

%64.1

Risk score

4.8

Published

6 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach CVE AI Research

CVE-2020-13934 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2020-13934 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1n/aApache Tomcat View
2apachetomcat View
3apachetomcat View
4apachetomcat View
5apachetomcat View
6debiandebian linux View
7debiandebian linux View
8netapponcommand system manager View
9opensuseleap View
10opensuseleap View
11canonicalubuntu linux View
12oracleagile engineering data management View
13oracleagile product lifecycle management View
14oracleagile product lifecycle management View
15oracleagile product lifecycle management View
16oraclecommunications instant messaging server View
17oraclefmw platform View
18oraclefmw platform View
19oracleinstantis enterprisetrack View
20oracleinstantis enterprisetrack View
21oracleinstantis enterprisetrack View
22oraclemanaged file transfer View
23oraclemanaged file transfer View
24oraclemysql enterprise monitor View
25oraclesiebel ui framework View
26oracleworkload manager View
27oracleworkload manager View
28oracleworkload manager View
Total affected vendors: 7|Products: 28

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

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
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD
5.0CVSS V2—AV:N/AC:L/Au:N/C:N/I:N/A:PNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

5 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

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

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

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-2020-13934 is associated with the following CWEs:

CWE-401: Common Weakness Enumeration Entry CWE-401CWE-476: NULL Pointer Dereference

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-2020-13934 weaknesses.

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

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3Evendor-advisoryDSA-4727vendor-advisory[debian-lts-announce] 20200722 [SECURITY] [DLA 2286-1] tomcat8 security updatevendor-advisoryopenSUSE-SU-2020:1102vendor-advisoryopenSUSE-SU-2020:1111vendor-advisory[tomcat-dev] 20200818 [Bug 64671] HTTP/2 Stream.receivedData method throwing continuous NullPointerException in the logsvendor-advisoryhttps://www.oracle.com/security-alerts/cpuoct2020.htmlvendor-advisoryhttps://security.netapp.com/advisory/ntap-20200724-0003/vendor-advisoryUSN-4596-1vendor-advisoryhttps://www.oracle.com/security-alerts/cpujan2021.htmlvendor-advisory

CVSS Vector Radar Chart

7.5 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama doğrulandı

5 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

N
n/a logo
n/a
A
apache logo
apache
D
debian logo
debian
N
netapp logo
netapp
O
opensuse logo
opensuse
C
canonical logo
canonical

Weakness Type (CWE & CAPEC)

CWE-401 CWE-476

Similar Vulnerabilities

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free keyDocumentation
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2020-13934"