Integer Overflow or Wraparound The advisory has been revoked - it doesn't affect any version of package duo-unix (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-DUOUNIX-11740814
- published10 Aug 2025
- disclosed24 Apr 2020
Introduced: 24 Apr 2020
CVE-2020-12135 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:14.
NVD Description
Note: Versions mentioned in the description apply only to the upstream duo-unix package and not the duo-unix package as distributed by Debian.
bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values. In particular, the bson_ensure_space() parameter bytesNeeded could have an integer overflow via properly constructed bson input.
References
- https://security-tracker.debian.org/tracker/CVE-2020-12135
- https://github.com/10gen-archive/mongo-c-driver-legacy/commit/1a1f5e26a4309480d88598913f9eebf9e9cba8ca#diff-f7d29a680148f52d6601f59ed787f577
- https://bugs.launchpad.net/ubuntu/+source/whoopsie/+bug/1872560
- https://launchpadlibrarian.net/474887364/bson-fix-overflow.patch
- https://usn.ubuntu.com/4450-1/