Vulnerability CVE-2014-6272


Published: 2015-08-24

Description:
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.

Type:

CWE-189

(Numeric Errors)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Libevent project -> Libevent 
Debian -> Debian linux 

 References:
http://archives.seul.org/libevent/users/Jan-2015/msg00010.html
http://www.debian.org/security/2015/dsa-3119
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.366317
https://puppet.com/security/cve/CVE-2014-6272

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