Kernel: gsm multiplexing race condition leads to privilege escalation
CVSS score
7.0
EPSS probability
%0.7
Risk score
0.1
Published
2 y ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2023-6546 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2023-6546 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Red Hat | Red Hat Enterprise Linux 8 | View |
| 2 | Red Hat | Red Hat Enterprise Linux 8 | View |
| 3 | Red Hat | Red Hat Enterprise Linux 8 | View |
| 4 | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | View |
| 5 | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | View |
| 6 | Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | View |
| 7 | Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | View |
| 8 | Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | View |
| 9 | Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | View |
| 10 | Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | View |
| 11 | Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | View |
| 12 | Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | View |
| 13 | Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support | View |
| 14 | Red Hat | Red Hat Enterprise Linux 9 | View |
| 15 | Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | View |
| 16 | Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | View |
| 17 | Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | View |
| 18 | Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | View |
| 19 | Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | View |
| 20 | Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | View |
| 21 | Red Hat | Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | View |
| 22 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 23 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 24 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 25 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 26 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 27 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 28 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 29 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 30 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 31 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 32 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 33 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 34 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 35 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 36 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 37 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 38 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 39 | Red Hat | RHOL-5.7-RHEL-8 | View |
| 40 | Red Hat | Red Hat Enterprise Linux 6 | View |
| 41 | Red Hat | Red Hat Enterprise Linux 7 | View |
| 42 | Red Hat | Red Hat Enterprise Linux 9 | View |
| 43 | linux | linux kernel | View |
| 44 | linux | linux kernel | View |
| 45 | fedoraproject | fedora | View |
| 46 | redhat | enterprise linux | View |
| 47 | redhat | enterprise linux | View |
RED HAT CSAF/VEX: Product Impact Check
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.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.0 | CVSS V3_1 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | CVE CNA |
| 7.0 | CVSS V31 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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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-2023-6546 is associated with the following CWEs:
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-2023-6546 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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Get this vulnerability through the API
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curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2023-6546"