Vulnerability · Published Feb 4, 2024 · Assigned by mitre
CVE-2020-36773
Critical 9.8
In plain English
A critical-severity out-of-bounds write in the ghostscript package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.9%top 40.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ghostscript | 9.53.0~dfsg-1 | DEBIAN-CVE-2020-36773 |
| Debian:13 | ghostscript | 9.53.0~dfsg-1 | DEBIAN-CVE-2020-36773 |
| Debian:14 | ghostscript | 9.53.0~dfsg-1 | DEBIAN-CVE-2020-36773 |
| Ubuntu:22.04:LTS | ghostscript | 9.55.0~dfsg1-0ubuntu5.5 | UBUNTU-CVE-2020-36773 |
Affected products (as reported)
Weakness: CWE-787, CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H