| Name | CVE-2023-42363 |
| Description | A use-after-free vulnerability was discovered in xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1059050 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| busybox (PTS) | bullseye | 1:1.30.1-6 | vulnerable |
| bullseye (security) | 1:1.30.1-6+deb11u1 | vulnerable |
| bookworm | 1:1.35.0-4 | vulnerable |
| sid, trixie | 1:1.37.0-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| busybox | source | (unstable) | 1:1.37.0-1 | | | 1059050 |
Notes
[bookworm] - busybox <no-dsa> (Minor issue)
[bullseye] - busybox <ignored> (Minor issue)
[buster] - busybox <ignored> (Minor issue)
https://bugs.busybox.net/show_bug.cgi?id=15865
The above ticket contains a poc, poc triggers on bookworm but not on bullseye.
The poc starts triggering with https://git.busybox.net/busybox/commit/?id=a885ce1af05c4eaa5ebcf883cb3da3433ca1c48b (1_34_0)
https://git.busybox.net/busybox/commit/?id=fb08d43d44d1fea1f741fafb9aa7e1958a5f69aa (1_37_0)