CVE-2016-2851

Name: CVE-2016-2851
Creator: NVD / NIST
Published: 2016-04-07T23:59:09.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 25.40%

Last modified Jun 17, 2026

CVE-2016-2851 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 25.40% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

25.40%

97.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Opensuse	Leap	42.1
Opensuse	Opensuse	13.2
Cypherpunks	Libotr	<= 4.1.0

References

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.htmlVendor Advisory
http://seclists.org/fulldisclosure/2016/Mar/21Exploit, Mailing List, Third Party Advisory
http://www.debian.org/security/2016/dsa-3512Third Party Advisory
http://www.securityfocus.com/archive/1/537745/100/0/threadedThird Party Advisory
http://www.securityfocus.com/bid/84285Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2926-1Third Party Advisory
https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.htmlExploit
https://security.gentoo.org/glsa/201701-10Third Party Advisory
https://www.exploit-db.com/exploits/39550/Third Party Advisory, VDB Entry
https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/Exploit
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.htmlVendor Advisory
http://seclists.org/fulldisclosure/2016/Mar/21Exploit, Mailing List, Third Party Advisory
http://www.debian.org/security/2016/dsa-3512Third Party Advisory
http://www.securityfocus.com/archive/1/537745/100/0/threadedThird Party Advisory
http://www.securityfocus.com/bid/84285Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2926-1Third Party Advisory
https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.htmlExploit
https://security.gentoo.org/glsa/201701-10Third Party Advisory
https://www.exploit-db.com/exploits/39550/Third Party Advisory, VDB Entry
https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/Exploit

Timeline

Published: Apr 7, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2851?

How severe is CVE-2016-2851?

Severity scoring for CVE-2016-2851 is pending analysis. The EPSS model estimates a 25.40% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2851?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-2851?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST