| Name | CVE-2021-45957 |
| Description | Dnsmasq 2.86 has a heap-based buffer overflow in answer_request (called from FuzzAnswerTheRequest and fuzz_rfc1035.c). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge. |
| 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 |
|---|
| dnsmasq (PTS) | bullseye | 2.85-1 | vulnerable |
| bullseye (security) | 2.85-1+deb11u1 | vulnerable |
| bookworm | 2.90-4~deb12u1 | vulnerable |
| sid, trixie | 2.91-1 | 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=35920
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2021-935.yaml
Non issue, result of poorly automated fuzzing effort