SB2013102701 - NULL pointer dereference in Cyrus SASL
Published: October 27, 2013 Updated: August 3, 2020
Security Bulletin ID
SB2013102701
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2013-4122)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.
Remediation
Install update from vendor's website.
References
- http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d
- http://security.gentoo.org/glsa/glsa-201309-01.xml
- http://www.debian.org/security/2015/dsa-3368
- http://www.openwall.com/lists/oss-security/2013/07/12/3
- http://www.openwall.com/lists/oss-security/2013/07/12/6
- http://www.openwall.com/lists/oss-security/2013/07/13/1
- http://www.openwall.com/lists/oss-security/2013/07/15/1
- http://www.ubuntu.com/usn/USN-2755-1
- https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/