| Name | CVE-2025-11961 |
| Description | pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer. |
| 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) |
| Debian Bugs | 1124381 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libpcap (PTS) | bullseye | 1.10.0-2 | vulnerable |
| bookworm | 1.10.3-1 | vulnerable |
| forky, sid, trixie | 1.10.5-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libpcap | source | (unstable) | (unfixed) | | | 1124381 |
Notes
[trixie] - libpcap <no-dsa> (Minor issue)
[bookworm] - libpcap <no-dsa> (Minor issue)
[bullseye] - libpcap <postponed> (Minor issue, 'pcap_ether_aton' never used directly according to codesearch.d.o)
Fixed by: https://github.com/the-tcpdump-group/libpcap/commit/b2d2f9a9a0581c40780bde509f7cc715920f1c02 (libpcap-1.10.6)