Glibc: integer overflow in __vsyslog_internal()
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 2.7%
exploitation probability
2.7%top 15% of all CVEs
observed exploitation
nono source reports it
An integer 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 very long message, leading to an incorrect calculation of the buffer size to store the message, resulting in undefined behavior. This issue affects glibc 2.37 and newer.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Fedora · Fedoran/a · glibcRed Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9References
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.htmlhttps://access.redhat.com/security/cve/CVE-2023-6780https://bugzilla.redhat.com/show_bug.cgi?id=2254396https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttp://seclists.org/fulldisclosure/2024/Feb/3https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/https://security.gentoo.org/glsa/202402-01https://security.netapp.com/advisory/ntap-20250207-0010/https://www.openwall.com/lists/oss-security/2024/01/30/6https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt