CVE-2023-6780
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-6780
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6780.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-6780
- Downstream
- Related
- Published
- 2024-01-31T14:15:48Z
- Modified
- 2025-07-29T11:04:40.519571Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
An integer overflow was found in the _vsysloginternal 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.
- References
-
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
- http://seclists.org/fulldisclosure/2024/Feb/3
- https://access.redhat.com/security/cve/CVE-2023-6780
- https://security.gentoo.org/glsa/202402-01
- https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt
- https://security.netapp.com/advisory/ntap-20250207-0010/
- https://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://www.openwall.com/lists/oss-security/2024/01/30/6
- https://bugzilla.redhat.com/show_bug.cgi?id=2254396
- https://security-tracker.debian.org/tracker/CVE-2023-6780
Affected packages
Debian:12 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source
Debian:13 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source