Description
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
Published: 2024-01-31
Score: 8.4 High
EPSS: 25.5% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-5611-1 glibc security update
Ubuntu USN Ubuntu USN USN-6620-1 GNU C Library vulnerabilities
History

Tue, 12 May 2026 11:30:00 +0000

Type Values Removed Values Added
References

Fri, 11 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.22699}

epss

{'score': 0.2501}


Thu, 17 Oct 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Fedoraproject Fedora
Gnu Glibc
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-05-12T10:41:06.882Z

Reserved: 2023-11-21T19:14:21.669Z

Link: CVE-2023-6246

cve-icon Vulnrichment

Updated: 2024-08-02T08:21:18.105Z

cve-icon NVD

Status : Modified

Published: 2024-01-31T14:15:48.420

Modified: 2026-05-12T11:16:18.020

Link: CVE-2023-6246

cve-icon Redhat

Severity : Important

Publid Date: 2024-01-30T00:00:00Z

Links: CVE-2023-6246 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses