| Name | CVE-2019-20633 |
| Description | GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| patch (PTS) | jessie, jessie (lts) | 2.7.5-1+deb8u3 | fixed |
| stretch (security), stretch (lts), stretch | 2.7.5-1+deb9u2 | fixed |
| buster, buster (security) | 2.7.6-3+deb10u1 | fixed |
| sid, trixie, bullseye, bookworm | 2.7.6-7 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| patch | source | (unstable) | (not affected) | | | |
Notes
- patch <not-affected> (Incomplete fix for CVE-2018-6952 not applied)
https://savannah.gnu.org/bugs/index.php?56683