Vulnerability CVE-2016-4356
Published: 2016-06-13

Description:
The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Libksba project -> Libskba 
Canonical -> Ubuntu linux 

 References:
https://security.gentoo.org/glsa/201604-04
http://www.ubuntu.com/usn/USN-2982-1
http://www.openwall.com/lists/oss-security/2016/05/10/3
http://www.openwall.com/lists/oss-security/2016/04/29/8
http://www.openwall.com/lists/oss-security/2016/04/29/5
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=243d12fdec66a4360fbb3e307a046b39b5b4ffc3
Copyright 2024, cxsecurity.com

 

Back to Top