High severity8.4NVD Advisory· Published Jan 31, 2024· Updated May 12, 2026
CVE-2023-6246
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.
Affected products
5- Red Hat/Red Hat Enterprise Linux 6v5cpe:/o:redhat:enterprise_linux:6
- Red Hat/Red Hat Enterprise Linux 7v5cpe:/o:redhat:enterprise_linux:7
- Red Hat/Red Hat Enterprise Linux 8v5cpe:/o:redhat:enterprise_linux:8
- Red Hat/Red Hat Enterprise Linux 9v5cpe:/o:redhat:enterprise_linux:9
- Fedora/Fedorav5
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
13- packetstormsecurity.com/files/176931/glibc-qsort-Out-Of-Bounds-Read-Write.htmlnvdExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.htmlnvdExploitThird Party AdvisoryVDB Entry
- seclists.org/fulldisclosure/2024/Feb/3nvdExploitThird Party Advisory
- seclists.org/fulldisclosure/2024/Feb/5nvdExploitThird Party Advisory
- www.openwall.com/lists/oss-security/2024/01/30/6nvdExploitMailing ListThird Party Advisory
- www.qualys.com/2024/01/30/cve-2023-6246/syslog.txtnvdExploitThird Party Advisory
- access.redhat.com/security/cve/CVE-2023-6246nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- security.gentoo.org/glsa/202402-01nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/nvdMailing List
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/nvdMailing List
- cert-portal.siemens.com/productcert/html/ssa-082556.htmlnvd
- security.netapp.com/advisory/ntap-20240216-0007/nvd
News mentions
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