Vulnerability · Published Aug 22, 2023 · Assigned by mitre
CVE-2021-46312
Medium 6.5
In plain English
A medium-severity security flaw in the djvulibre package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.0%top 35.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue was discovered IW44EncodeCodec.cpp in djvulibre 3.5.28 in allows attackers to cause a denial of service via divide by zero.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | djvulibre | 3.5.28-2.2~deb12u1 | DEBIAN-CVE-2021-46312 |
| Debian:13 | djvulibre | 3.5.28-2.2 | DEBIAN-CVE-2021-46312 |
| Debian:14 | djvulibre | 3.5.28-2.2 | DEBIAN-CVE-2021-46312 |
| Ubuntu:22.04:LTS | djvulibre | 3.5.28-2ubuntu0.22.04.2 | UBUNTU-CVE-2021-46312 |
| Ubuntu:24.04:LTS | djvulibre | 3.5.28-2ubuntu0.24.04.2 | UBUNTU-CVE-2021-46312 |
Affected products (as reported)
References
- https://sourceforge.net/p/djvu/bugs/344/
- FEDORA-2024-d20163632f vendor-advisory
- FEDORA-2024-891c09df97 vendor-advisory
- FEDORA-2024-e8b9bedd36 vendor-advisory
- https://lists.debian.org/debian-lts-announce/2025/07/msg00007.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HN4JOIBNMJMW2NQSGT6DCDCQZJ2ROFM7/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XEEGAR4WUF6LTOJEHSON7I2MBTPFTVR5/