CVE-2019-20633
Fixed in a distro release EPSS 1%
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.
Products: gnu patch
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.11 | patch | 2.7.6-r7 |
| Alpine 3.12 | patch | 2.7.6-r7 |
| Alpine 3.13 | patch | 2.7.6-r7 |
| Alpine 3.14 | patch | 2.7.6-r7 |
| Alpine 3.15 | patch | 2.7.6-r7 |
| Alpine 3.16 | patch | 2.7.6-r7 |
| Alpine 3.17 | patch | 2.7.6-r7 |
| Alpine 3.18 | patch | 2.7.6-r7 |
| Alpine 3.19 | patch | 2.7.6-r7 |
| Alpine 3.20 | patch | 2.7.6-r7 |
| Alpine 3.21 | patch | 2.7.6-r7 |
| Alpine 3.22 | patch | 2.7.6-r7 |
| Alpine 3.23 | patch | 2.7.6-r7 |
| Alpine 3.24 | patch | 2.7.6-r7 |
| Chainguard | patch | 2.7.6-r3 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | patch | 2.7.6-150000.5.6.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | patch | 2.7.6-150000.5.6.1 |
| SUSE Linux Enterprise Server 12 SP5 | patch | 2.7.5-8.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | patch | 2.7.5-8.11.1 |
| SUSE Linux Micro 6.0 | patch | 2.7.6-3.1 |
| Ubuntu 16.04 LTS | patch | no fix |
| Ubuntu 18.04 LTS | patch | no fix |
| Ubuntu 20.04 LTS | patch | no fix |
| Ubuntu 22.04 LTS | patch | no fix |
| Ubuntu 24.04 LTS | patch | no fix |
| Ubuntu 25.10 | patch | no fix |
| Ubuntu 26.04 LTS | patch | no fix |
| Ubuntu 26.10 | patch | no fix |
| Ubuntu Pro 14.04 LTS | patch | no fix |
| Wolfi | patch | 2.7.6-r3 |
| openSUSE Leap 15.5 | patch | 2.7.6-150000.5.6.1 |
| openSUSE Leap 15.6 | patch | 2.7.6-150000.5.6.1 |
| openSUSE Tumbleweed | patch | 2.7.6-8.1 |