Vulnerability · Published Sep 14, 2021 · Assigned by mitre
CVE-2020-21048
Medium 6.5
In plain English
A medium-severity security flaw in the libsixel package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.4%top 27.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libsixel | 1.8.6-1 | DEBIAN-CVE-2020-21048 |
| Debian:13 | libsixel | 1.8.6-1 | DEBIAN-CVE-2020-21048 |
| Debian:14 | libsixel | 1.8.6-1 | DEBIAN-CVE-2020-21048 |
Affected products (as reported)
References
- https://github.com/saitoha/libsixel/issues/73 x_refsource_MISC
- https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037 x_refsource_MISC
- https://github.com/saitoha/libsixel/releases/tag/v1.8.4 x_refsource_MISC
- https://github.com/saitoha/libsixel/blob/master/ChangeLog x_refsource_MISC
- https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad x_refsource_MISC