Vulnerability CVE-2011-3148
Published: 2012-07-22   Modified: 2012-07-23

Description:
Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) before 1.1.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a long string of white spaces at the beginning of the ~/.pam_environment file.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.4/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Linux-pam -> Linux-pam 
Kernel -> Linux-pam 

 References:
http://git.fedorahosted.org/git/?p=linux-pam.git;a=commitdiff;h=caf5e7f61c8d9288daa49b4f61962e6b1239121d
http://security.gentoo.org/glsa/glsa-201206-31.xml
http://www.ubuntu.com/usn/USN-1237-1
https://bugs.launchpad.net/ubuntu/+source/pam/+bug/874469
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