| Name | CVE-2019-9923 |
| Description | pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 925286 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tar (PTS) | jessie, jessie (lts) | 1.27.1-2+deb8u2 | vulnerable |
| stretch (security), stretch (lts), stretch | 1.29b-1.1+deb9u1 | vulnerable |
| buster (security), buster, buster (lts) | 1.30+dfsg-6+deb10u1 | vulnerable |
| bullseye | 1.34+dfsg-1+deb11u1 | fixed |
| bookworm | 1.34+dfsg-1.2+deb12u1 | fixed |
| sid, trixie | 1.35+dfsg-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tar | source | (unstable) | 1.32+dfsg-1 | unimportant | | 925286 |
Notes
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=cb07844454d8cc9fb21f53ace75975f91185a120
http://savannah.gnu.org/bugs/?55369 (private)
https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1810241
Crash in CLI tool, no security impact