🛡️ CVE-2023-6246
🟠 CVSS 8.4 — High ⚠️ Exploit Public CWE-122 NVD
8.4
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.4
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-122
Public Exploit ⚠️ Yes
Source NVD
Published 2024-01-31
Updated 2026-06-08
Modified 2026-05-12
Fix URL N/A

Affected Packages

Software From version Fixed in
fedora — —
glibc 2.36 2.39

References

Exploit, Third Party Advisory http://seclists.org/fulldisclosure/2024/Feb/3
Exploit, Third Party Advisory http://seclists.org/fulldisclosure/2024/Feb/5
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2249053
Exploit, Mailing List, Third Party Advisory https://www.openwall.com/lists/oss-security/2024/01/30/6
Exploit, Third Party Advisory http://seclists.org/fulldisclosure/2024/Feb/3
Exploit, Third Party Advisory http://seclists.org/fulldisclosure/2024/Feb/5
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2249053
Exploit, Mailing List, Third Party Advisory https://www.openwall.com/lists/oss-security/2024/01/30/6

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