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Vulnerabilities / CVE-2016-2851

critical

CVE-2016-2851

Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms ...

Published Modified CWE 119
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

Integer overflow in proto.c in libotr before 4.1.1 on 64-bit platforms allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via a series of large OTR messages, which triggers a heap-based buffer overflow.

Affected packages and fixed versions

SourcePackageFixed in
debian 11libotr4.1.1-1
debian 12libotr4.1.1-1
debian 13libotr4.1.1-1
debian 14libotr4.1.1-1
debian 7libotr3.2.1-1+deb7u2
debian 8libotr4.1.0-2+deb8u1
echolibotr4.1.1-1
ubuntu 12.04libotr3.2.0-4ubuntu0.3
ubuntu 14.04libotr4.0.0-2.2ubuntu1.1
ubuntu 15.10libotr4.1.0-2ubuntu0.1

References

All 13 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.