Vulnerability · Published Jul 21, 2021 · Assigned by mitre
CVE-2021-37220
Medium 5.5
In plain English
A medium-severity security flaw in the mupdf package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.3%top 28.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mupdf | 1.17.0+ds1-2 | DEBIAN-CVE-2021-37220 |
| Debian:13 | mupdf | 1.17.0+ds1-2 | DEBIAN-CVE-2021-37220 |
| Debian:14 | mupdf | 1.17.0+ds1-2 | DEBIAN-CVE-2021-37220 |
Affected products (as reported)
References
- https://bugs.ghostscript.com/show_bug.cgi?id=703791 x_refsource_MISC
- http://git.ghostscript.com/?p=mupdf.git%3Bh=f5712c9949d026e4b891b25837edd2edc166151f x_refsource_MISC
- FEDORA-2021-e1d8a99caa vendor-advisory, x_refsource_FEDORA