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High severity8.4NVD Advisory· Published Jan 31, 2024· Updated May 12, 2026

CVE-2023-6246

CVE-2023-6246

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.

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Affected products

469

Patches

Vulnerability mechanics

References

13

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