CVE-2023-6779

CVE-2023-6779 · Glibc: off-by-one heap-based buffer overflow in __vsyslog_internal()

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.2 · High · EPSS 3.2% · Fix available

Published

2024-01-31T14:07:41.967Z

Updated

2026-10-14T22:15:19.456Z

Stack: system

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