CVE-2023-6779
published 2024-01-31CVE-2023-6779: 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…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | glibc | < glibc 2.36-9+deb12u4 (bookworm) | glibc 2.36-9+deb12u4 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| gnu | glibc | >= 0 < 2.36-9+deb12u4 | 2.36-9+deb12u4 |
| gnu | glibc | >= 0 < 2.37-15 | 2.37-15 |
| gnu | glibc | >= 0 < 2.37-15 | 2.37-15 |
| gnu | glibc | >= 2.37 < 2.39 | 2.39 |
| msrc | azl3_glibc_2.38-10_on_azure_linux_3.0 | — | — |
| msrc | azl3_glibc_2.38-6_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH