| Name | CVE-2026-14461 |
| Description | mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression pointer in the answer NAME field. ipinfo_lookup() function uses the length of the response as the end-of-message boundary for dn_expand() function. The result is a reliable crash. This issue exists in the mtr through version 0.96 and it was fixed in commit 48e1794414d338ce47abc0f27c25ade8788af9c3. |
| 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 | 1143069 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| mtr (PTS) | bullseye | 0.94-1+deb11u1 | vulnerable |
| bookworm | 0.95-1 | vulnerable |
| trixie | 0.95-1.1 | vulnerable |
| forky, sid | 0.96-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mtr | source | (unstable) | (unfixed) | | | 1143069 |
Notes
[trixie] - mtr <no-dsa> (Minor issue)
[bookworm] - mtr <postponed> (Minor issue, OOB read)
[bullseye] - mtr <postponed> (Minor issue, OOB read)
Fixed by: https://github.com/traviscross/mtr/commit/48e1794414d338ce47abc0f27c25ade8788af9c3