CVE-2010-3431
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…
Does this matter?
Lower severity and a low EPSS score (0.35%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 1.9 LOWAV:L/AC:M/Au:N/C:P/I:N/A:N
- EPSS
- 0.35% probability · 28th percentile
- CISA KEV
- Not listed
- Affected
- linux-pam/linux-pam
- Source
- secalert@redhat.com
References
- http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=843807a3a90f52e7538be756616510730a24739a
- http://openwall.com/lists/oss-security/2010/09/21/10Patch
- http://openwall.com/lists/oss-security/2010/09/21/3Patch
- http://openwall.com/lists/oss-security/2010/09/21/8Patch
- 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/2010/09/27/4Patch
- 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/2010/10/03/1Patch
- http://openwall.com/lists/oss-security/2010/10/25/2Patch
- http://secunia.com/advisories/49711
- http://security.gentoo.org/glsa/glsa-201206-31.xml
- http://www.openwall.com/lists/oss-security/2010/09/21/11Patch
- http://www.openwall.com/lists/oss-security/2010/09/24/2
- https://bugzilla.redhat.com/show_bug.cgi?id=641361Patch
- http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=843807a3a90f52e7538be756616510730a24739a
- http://openwall.com/lists/oss-security/2010/09/21/10Patch
- http://openwall.com/lists/oss-security/2010/09/21/3Patch
- http://openwall.com/lists/oss-security/2010/09/21/8Patch
- 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/2010/09/27/4Patch
- 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/2010/10/03/1Patch
- http://openwall.com/lists/oss-security/2010/10/25/2Patch
- http://secunia.com/advisories/49711
- http://security.gentoo.org/glsa/glsa-201206-31.xml
- http://www.openwall.com/lists/oss-security/2010/09/21/11Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.