Vulnerability · Published Aug 22, 2023 · Assigned by mitre
CVE-2020-21723
Medium 5.5
In plain English
A medium-severity out-of-bounds write in the oggvideotools package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.5%top 58.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | oggvideotools | no fix listed | DEBIAN-CVE-2020-21723 |
| Debian:13 | oggvideotools | no fix listed | DEBIAN-CVE-2020-21723 |
| Debian:14 | oggvideotools | no fix listed | DEBIAN-CVE-2020-21723 |
| Ubuntu:22.04:LTS | oggvideotools | no fix listed | UBUNTU-CVE-2020-21723 |
| Ubuntu:24.04:LTS | oggvideotools | no fix listed | UBUNTU-CVE-2020-21723 |
| Ubuntu:25.10 | oggvideotools | no fix listed | UBUNTU-CVE-2020-21723 |
| Ubuntu:26.04:LTS | oggvideotools | no fix listed | UBUNTU-CVE-2020-21723 |
| Ubuntu:26.10 | oggvideotools | no fix listed | UBUNTU-CVE-2020-21723 |
Affected products (as reported)
Weakness: CWE-787