CVE-2023-6246

high

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

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

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

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

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

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

Published: 2024-01-31

Updated: 2024-02-16

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.22699

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability Being Monitored

Detections

Analytics