Vulnerability · Published Sep 14, 2021 · Assigned by mitre
CVE-2020-21049
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 invalid read in the stb_image.h component of libsixel prior to v1.8.5 allows attackers to cause a denial of service (DOS) via a crafted PSD file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libsixel | 1.8.6-1 | DEBIAN-CVE-2020-21049 |
| Debian:13 | libsixel | 1.8.6-1 | DEBIAN-CVE-2020-21049 |
| Debian:14 | libsixel | 1.8.6-1 | DEBIAN-CVE-2020-21049 |
Affected products (as reported)
References
- https://github.com/saitoha/libsixel/blob/master/ChangeLog x_refsource_MISC
- https://github.com/saitoha/libsixel/issues/74 x_refsource_MISC
- https://github.com/saitoha/libsixel/commit/0b1e0b3f7b44233f84e5c9f512f8c90d6bbbe33d x_refsource_MISC
- https://github.com/saitoha/libsixel/releases/tag/v1.8.5 x_refsource_MISC
- https://bitbucket.org/netbsd/pkgsrc/commits/970a81d31ec7498e04d09b6b7771cef35f63cd28 x_refsource_MISC