Vulnerability CVE-2023-6779: Information
Description
An off-by-one 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 these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.
Severity: HIGH (7.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| glibc | sisyphus | 2.38.0.44.d37c2b20a4-alt1 | 2.38.0.76.e9f05fa1c6-alt1 | ALT-PU-2024-1634-2 | 339494 | Fixed |
| glibc | sisyphus_riscv64 | 2.38.0.44.d37c2b20a4-alt1 | 2.38.0.66.ge1135387de-alt1 | ALT-PU-2024-2632-1 | - | Fixed |
| glibc | sisyphus_loongarch64 | 2.38.0.76.e9f05fa1c6-alt1.0.port | 2.38.0.76.e9f05fa1c6-alt1.0.port | ALT-PU-2024-7462-1 | - | Fixed |
| glibc | p11 | 2.38.0.44.d37c2b20a4-alt1 | 2.38.0.76.e9f05fa1c6-alt1 | ALT-PU-2024-1634-2 | 339494 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-6779 |
|
| RHBZ#2254395 |
|
| https://www.openwall.com/lists/oss-security/2024/01/30/6 |
|
| http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html |
|
| 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://security.gentoo.org/glsa/202402-01 |
|
| http://seclists.org/fulldisclosure/2024/Feb/3 |
|
| https://www.qualys.com/2024/01/30/cve-2023-6246/syslog.txt |
|
| https://security.netapp.com/advisory/ntap-20240223-0006/ |
|