VulnerabilityModified
CVE-2023-6780
An integer overflow was found in the __vsyslog_internal function of the glibc library.
MEDIUM 5.3EPSS 2.71%
Does this matter?
Lower severity and a low EPSS score (2.71%). Track it; it rarely justifies an emergency change on its own.
Description
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
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 2.71% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-131, CWE-190
- Affected
- gnu/glibc · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2024/Feb/3Exploit, Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6780Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254396Issue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/Mailing List
- https://security.gentoo.org/glsa/202402-01Third Party Advisory
- https://www.openwall.com/lists/oss-security/2024/01/30/6Exploit, Mailing List
- https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txtThird Party Advisory
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2024/Feb/3Exploit, Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-6780Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2254396Issue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D2FIH77VHY3KCRROCXOT6L27WMZXSJ2G/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWQ6BZJ6CV5UAW4VZSKJ6TO4KIW2KWAQ/Mailing List
- https://security.gentoo.org/glsa/202402-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20250207-0010/
- https://www.openwall.com/lists/oss-security/2024/01/30/6Exploit, Mailing List
- https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txtThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.