Vulnerability Monitor

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CVE-2016-2851

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.

Published

2016-04-07T23:59:09.940

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	opensuse	leap	42.1	Yes
Operating System	opensuse	opensuse	13.2	Yes
Application	cypherpunks	libotr	≤ 4.1.0	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html Mailing List ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html Vendor Advisory ([email protected])
http://seclists.org/fulldisclosure/2016/Mar/21 Exploit, Mailing List, Third Party Advisory ([email protected])
http://www.debian.org/security/2016/dsa-3512 Third Party Advisory ([email protected])
http://www.securityfocus.com/archive/1/537745/100/0/threaded Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/84285 Third Party Advisory, VDB Entry ([email protected])
http://www.ubuntu.com/usn/USN-2926-1 Third Party Advisory ([email protected])
https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html Exploit ([email protected])
https://security.gentoo.org/glsa/201701-10 Third Party Advisory ([email protected])
https://www.exploit-db.com/exploits/39550/ Third Party Advisory, VDB Entry ([email protected])
https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/ Exploit ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html Mailing List (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2016/Mar/21 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2016/dsa-3512 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/537745/100/0/threaded Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/84285 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2926-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201701-10 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/39550/ Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/ Exploit (af854a3a-2127-422b-91ae-364da2661108)