Vulnerability · Published Aug 13, 2020 · Assigned by mitre
CVE-2020-16293
Medium 5.5
In plain English
A medium-severity security flaw in the ghostscript package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.8%top 21.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file. This is fixed in v9.51.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | ghostscript | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | ghostscript-doc | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | ghostscript-tools-dvipdf | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | ghostscript-tools-fonts | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | ghostscript-tools-printing | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | ghostscript-x11 | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | libgs | 9.27-1.el8 | ALSA-2021:1852 |
| AlmaLinux:8 | libgs-devel | 9.27-1.el8 | ALSA-2021:1852 |
| Alpine:v3.20 | ghostscript | 9.51-r0 | ALPINE-CVE-2020-16293 |
| Alpine:v3.21 | ghostscript | 9.51-r0 | ALPINE-CVE-2020-16293 |
| Alpine:v3.22 | ghostscript | 9.51-r0 | ALPINE-CVE-2020-16293 |
| Alpine:v3.23 | ghostscript | 9.51-r0 | ALPINE-CVE-2020-16293 |
| Alpine:v3.24 | ghostscript | 9.51-r0 | ALPINE-CVE-2020-16293 |
| Debian:12 | ghostscript | 9.51~dfsg-1 | DEBIAN-CVE-2020-16293 |
| Debian:13 | ghostscript | 9.51~dfsg-1 | DEBIAN-CVE-2020-16293 |
| Debian:14 | ghostscript | 9.51~dfsg-1 | DEBIAN-CVE-2020-16293 |
| Rocky Linux:8 | ghostscript | 0:9.27-11.el8 | RLSA-2021:1852 |
| Rocky Linux:8 | ghostscript | 0:9.27-1.el8 | RLSA-2021:1852 |
Affected products (as reported)
References
- https://bugs.ghostscript.com/show_bug.cgi?id=701795 x_refsource_MISC
- https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=7870f4951bcc6a153f317e3439e14d0e929fd231 x_refsource_MISC
- [debian-lts-announce] 20200820 [SECURITY] [DLA 2335-1] ghostscript security update mailing-list, x_refsource_MLIST
- DSA-4748 vendor-advisory, x_refsource_DEBIAN
- GLSA-202008-20 vendor-advisory, x_refsource_GENTOO
- USN-4469-1 vendor-advisory, x_refsource_UBUNTU