| Name | CVE-2018-6952 |
| Description | A double free exists in the another_hunk function in pch.c in GNU patch through 2.7.6. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| patch (PTS) | jessie | 2.7.5-1+deb8u1 | vulnerable |
| jessie (security) | 2.7.5-1+deb8u3 | vulnerable |
| stretch (security), stretch | 2.7.5-1+deb9u2 | vulnerable |
| buster, buster (security) | 2.7.6-3+deb10u1 | vulnerable |
| bullseye, sid | 2.7.6-6 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| patch | source | (unstable) | (unfixed) | unimportant | | |
Notes
https://savannah.gnu.org/bugs/index.php?53133
https://git.savannah.gnu.org/cgit/patch.git/commit/?id=9c986353e420ead6e706262bf204d6e03322c300
When fixing this issue make sure to not apply only the incomplete fix,
and opening CVE-2019-20633, cf. https://savannah.gnu.org/bugs/index.php?56683
Crash in CLI tool, no security impact