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Mageia: 2024-0026 Moderate: Glibc Buffer Overflow Risks Addressed

mageia
Calendar Grey February 4, 2024
Dist Mageia Esm H88
Enhanced glibc updates tackle severe vulnerabilities such as memory leaks and program failures for Mageia. Full information enclosed!
The updated packages fix security vulnerabilities: A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library

Summary

The updated packages fix security vulnerabilities: 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. (CVE-2023-6246) 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. (CVE-2023-6779) An integer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog f...

References

- https://bugs.mageia.org/show_bug.cgi?id=32796

- https://security-tracker.debian.org/tracker/DSA-5611-1

- https://bodhi.fedoraproject.org/updates/FEDORA-2024-aec80d6e8a

- https://www.cve.org/CVERecord?id=CVE-2023-6246

- https://www.cve.org/CVERecord?id=CVE-2023-6779

- https://www.cve.org/CVERecord?id=CVE-2023-6780

Resolution

SRPMS

- 9/core/glibc-2.36-52.mga9

Publication date: 04 Feb 2024
URL: https://advisories.mageia.org/MGASA-2024-0026.html
Type: security
CVE: CVE-2023-6246, CVE-2023-6779, CVE-2023-6780

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