| Name | CVE-2025-12198 |
| Description | A vulnerability has been found in dnsmasq up to 2.73rc6. Affected is the function parse_hex of the file src/util.c of the component Config File Handler. The manipulation of the argument i leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, 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 |
| forky, 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
Doesn't cross any security boundary, config files are trusted