National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2010-3431 Detail

Description

The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.

Source:  MITRE
Description Last Modified:  01/24/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 1.9 LOW
Vector: (AV:L/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.altlinux.org/people/ldv/packages/?p=pam.git;a=commit;h=843807a3a90f52e7538be756616510730a24739a Patch
http://openwall.com/lists/oss-security/2010/09/21/10 Patch
http://openwall.com/lists/oss-security/2010/09/21/3 Patch
http://openwall.com/lists/oss-security/2010/09/21/8 Patch
http://openwall.com/lists/oss-security/2010/09/21/9
http://openwall.com/lists/oss-security/2010/09/27/10
http://openwall.com/lists/oss-security/2010/09/27/4 Patch
http://openwall.com/lists/oss-security/2010/09/27/5
http://openwall.com/lists/oss-security/2010/09/27/7
http://openwall.com/lists/oss-security/2010/10/03/1 Patch
http://openwall.com/lists/oss-security/2010/10/25/2 Patch
http://security.gentoo.org/glsa/glsa-201206-31.xml
http://www.openwall.com/lists/oss-security/2010/09/21/11 Patch
http://www.openwall.com/lists/oss-security/2010/09/24/2
https://bugzilla.redhat.com/show_bug.cgi?id=641361 Patch

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2010-3431
NVD Published Date:
01/24/2011
NVD Last Modified:
01/03/2019