| Name | CVE-2023-4813 |
| Description | A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| glibc (PTS) | buster | 2.28-10+deb10u1 | vulnerable |
| buster (security) | 2.28-10+deb10u2 | vulnerable |
| bullseye | 2.31-13+deb11u8 | vulnerable |
| bullseye (security) | 2.31-13+deb11u9 | vulnerable |
| bookworm | 2.36-9+deb12u4 | fixed |
| bookworm (security) | 2.36-9+deb12u6 | fixed |
| trixie, sid | 2.37-18 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| glibc | source | (unstable) | 2.36-3 | | | |
Notes
[bullseye] - glibc <no-dsa> (Minor issue)
[buster] - glibc <no-dsa> (Minor issue)
https://sourceware.org/bugzilla/show_bug.cgi?id=28931
Fixed by: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=1c37b8022e8763fedbb3f79c02e05c6acfe5a215 (glibc-2.36)