GLSA-201405-19 : MCrypt: User-assisted execution of arbitrary code

This script is Copyright (C) 2014-2015 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201405-19
(MCrypt: User-assisted execution of arbitrary code)

Multiple vulnerabilities have been discovered in MCrypt:
A boundary error in MCrypt could cause a stack-based buffer overflow
(CVE-2012-4409).
MCrypt contains multiple format string errors (CVE-2012-4426).
MCrypt does not properly handle long file names, which could cause a
stack-based buffer overflow (CVE-2012-4527).

Impact :

A remote attacker could entice a user to open a specially crafted file
using MCrypt, possibly resulting in execution of arbitrary code with the
privileges of the process or a Denial of Service condition.

Workaround :

There is no known workaround at this time.

See also :

https://security.gentoo.org/glsa/201405-19

Solution :

All MCrypt users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-crypt/mcrypt-2.6.8-r2'

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:ND)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 74061 ()

Bugtraq ID: 55425
55557
56114

CVE ID: CVE-2012-4409
CVE-2012-4426
CVE-2012-4527

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