Vulnerability · Published Nov 10, 2021 · Assigned by mitre
CVE-2020-23884
Medium 5.5
In plain English
A medium-severity security flaw in the qtimageformats-opensource-src package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.0%top 37.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A buffer overflow in Nomacs v3.15.0 allows attackers to cause a denial of service (DoS) via a crafted MNG file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | qtimageformats-opensource-src | no fix listed | DEBIAN-CVE-2020-23884 |
| Debian:13 | qtimageformats-opensource-src | 5.15.15-3 | DEBIAN-CVE-2020-23884 |
| Debian:14 | qtimageformats-opensource-src | 5.15.15-3 | DEBIAN-CVE-2020-23884 |
| Ubuntu:22.04:LTS | nomacs | no fix listed | UBUNTU-CVE-2020-23884 |
| Ubuntu:24.04:LTS | nomacs | no fix listed | UBUNTU-CVE-2020-23884 |
| Ubuntu:25.10 | nomacs | no fix listed | UBUNTU-CVE-2020-23884 |
| Ubuntu:26.04:LTS | nomacs | no fix listed | UBUNTU-CVE-2020-23884 |
| Ubuntu:26.10 | nomacs | no fix listed | UBUNTU-CVE-2020-23884 |
Affected products (as reported)
References
- https://nomacs.org/ x_refsource_MISC
- https://github.com/nomacs/nomacs/issues/516 x_refsource_MISC
- https://github.com/Aurorainfinity/vulnerabilities/blob/master/nomacs/readme.md x_refsource_MISC