CVE-2023-6246

8.4 HIGH
Published: January 31, 2024 Modified: May 12, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://packetstormsecurity.com/files/176931/glibc-qsort-Out-Of-Bounds-Read-Write.html
Source: secalert@redhat.com
Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
Source: secalert@redhat.com
Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2024/Feb/3
Source: secalert@redhat.com
Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2024/Feb/5
Source: secalert@redhat.com
Exploit Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6246
Source: secalert@redhat.com
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2249053
Source: secalert@redhat.com
Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/
Source: secalert@redhat.com
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/
Source: secalert@redhat.com
Mailing List
https://security.gentoo.org/glsa/202402-01
Source: secalert@redhat.com
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240216-0007/
Source: secalert@redhat.com
https://www.openwall.com/lists/oss-security/2024/01/30/6
Source: secalert@redhat.com
Exploit Mailing List Third Party Advisory
https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
Source: secalert@redhat.com
Exploit Third Party Advisory
http://packetstormsecurity.com/files/176931/glibc-qsort-Out-Of-Bounds-Read-Write.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2024/Feb/3
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
http://seclists.org/fulldisclosure/2024/Feb/5
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6246
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2249053
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List
https://security.gentoo.org/glsa/202402-01
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240216-0007/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.openwall.com/lists/oss-security/2024/01/30/6
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Mailing List Third Party Advisory
https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

25 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.4 / 10.0
EPSS (Exploit Probability)
27.0%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-122 CWE-787

Affected Vendors

gnu fedoraproject

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