SB2014041004 - Path traversal in git.kernel linux-pam
Published: April 10, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014041004
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Path traversal (CVE-ID: CVE-2014-2583)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create arbitrary files or possibly bypass authentication via a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty function, which is used by the format_timestamp_name function.
Remediation
Install update from vendor's website.
References
- http://secunia.com/advisories/57317
- http://www.openwall.com/lists/oss-security/2014/03/24/5
- http://www.openwall.com/lists/oss-security/2014/03/26/10
- http://www.openwall.com/lists/oss-security/2014/03/31/6
- http://www.securityfocus.com/bid/66493
- http://www.ubuntu.com/usn/USN-2935-1
- http://www.ubuntu.com/usn/USN-2935-2
- http://www.ubuntu.com/usn/USN-2935-3
- https://git.fedorahosted.org/cgit/linux-pam.git/commit/?id=Linux-PAM-1_1_8-32-g9dcead8
- https://security.gentoo.org/glsa/201605-05