CVE-2016-2851 Information

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.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html http://seclists.org/fulldisclosure/2016/Mar/21 http://www.debian.org/security/2016/dsa-3512 http://www.securityfocus.com/archive/1/537745/100/0/threaded http://www.securityfocus.com/bid/84285 http://www.ubuntu.com/usn/USN-2926-1 https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html https://security.gentoo.org/glsa/201701-10 https://www.exploit-db.com/exploits/39550/ https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8