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High severity8.2NVD Advisory· Published Jan 31, 2024· Updated May 12, 2026

CVE-2023-6779

CVE-2023-6779

Description

An off-by-one 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 these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.

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Affected products

468

Patches

Vulnerability mechanics

References

11

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