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.

References

https://www.bleepingcomputer.com/news/security/new-linux-glibc-flaw-lets-attackers-get-root-on-major-distros/

https://www.openwall.com/lists/oss-security/2024/01/30/6

https://security.netapp.com/advisory/ntap-20240216-0007/

https://security.gentoo.org/glsa/202402-01

https://lists.fedoraproject.org/archives/list/[email protected]/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/

https://lists.fedoraproject.org/archives/list/[email protected]/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/

https://bugzilla.redhat.com/show_bug.cgi?id=2249053

https://access.redhat.com/security/cve/CVE-2023-6246

http://seclists.org/fulldisclosure/2024/Feb/5

http://seclists.org/fulldisclosure/2024/Feb/3

http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html

http://packetstormsecurity.com/files/176931/glibc-qsort-Out-Of-Bounds-Read-Write.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3