| Name | CVE-2021-45955 |
| Description | Dnsmasq 2.86 has a heap-based buffer overflow in resize_packet (called from FuzzResizePacket and fuzz_rfc1035.c). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | high |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| dnsmasq (PTS) | stretch | 2.76-5+deb9u2 | vulnerable |
| stretch (security) | 2.76-5+deb9u3 | vulnerable |
| buster, buster (security) | 2.80-1+deb10u1 | vulnerable |
| bullseye | 2.85-1 | vulnerable |
| bookworm, sid | 2.86-1.1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| dnsmasq | source | (unstable) | (unfixed) | unimportant | | |
Notes
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35898
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-932.yaml
Non issue, result of poorly automated fuzzing effort