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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.ubuntu.com/usn/USN-2926-1 | third party advisory vendor advisory |
| http://www.securityfocus.com/archive/1/537745/100/0/threaded | third party advisory mailing list |
| http://www.debian.org/security/2016/dsa-3512 | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/201701-10 | third party advisory vendor advisory |
| https://www.exploit-db.com/exploits/39550/ | exploit vdb entry third party advisory |
| http://www.securityfocus.com/bid/84285 | vdb entry third party advisory |
| http://seclists.org/fulldisclosure/2016/Mar/21 | mailing list exploit third party advisory |
| https://www.x41-dsec.de/lab/advisories/x41-2016-001-libotr/ | exploit |
| http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00021.html | mailing list vendor advisory |
| https://lists.cypherpunks.ca/pipermail/otr-users/2016-March/002581.html | mailing list exploit |
| http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00030.html | vendor advisory |