| Name | CVE-2026-14164 |
| Description | A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service. |
| 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 | 1141180 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libarchive (PTS) | bullseye | 3.4.3-2+deb11u1 | vulnerable |
| bullseye (security) | 3.4.3-2+deb11u4 | vulnerable | |
| bookworm | 3.6.2-1+deb12u4 | vulnerable | |
| bookworm (security) | 3.6.2-1+deb12u2 | vulnerable | |
| trixie | 3.7.4-4+deb13u1 | vulnerable | |
| forky, sid | 3.8.8-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libarchive | source | (unstable) | 3.8.8-1 | 1141180 |
[trixie] - libarchive <no-dsa> (Minor issue)
[bookworm] - libarchive <postponed> (Minor issue, DoS)
[bullseye] - libarchive <postponed> (Minor issue, DoS)
https://github.com/libarchive/libarchive/issues/3069
https://github.com/libarchive/libarchive/pull/3071
https://github.com/libarchive/libarchive/commit/1c914cdfef533cbee1ae3aa21a89ba02ed4d5f61 (master)
https://github.com/libarchive/libarchive/commit/f774f03b40cb109348e5c6d52b59c864e3cfa8e8 (v3.8.8)