PT-2013-1260 · Gnu+1 · Glibc+1

Mancha · Published 2013-07-18 · Updated 2016-12-08 · CVE-2013-4122

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions cyrus-sasl versions prior to 2.1.26

Description The issue is related to the improper handling of a NULL value returned by the crypt function, as implemented in glibc 2.17 and later. This can be exploited by remote attackers to cause a denial of service, resulting in thread crashes and consumption. The exploitation can occur via an invalid salt or, when FIPS-140 is enabled, through DES or MD5 encrypted passwords, triggering a NULL pointer dereference.

Recommendations For versions prior to 2.1.26, update to version 2.1.26 or later to resolve the issue. As a temporary workaround, consider restricting access to the crypt function to minimize the risk of exploitation.

Exploit

Fix

DoS

Weakness Enumeration

CWE-189

Related Identifiers

BDU:2015-09740

CVE-2013-4122

DSA-3368-1

USN-1988-1

USN-2755-1

Affected Products

Cyrus-Sasl

Glibc

References · 26

• 🔥 http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4122 · Security Note
• https://bdu.fstec.ru/vul/2015-09740 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-4122 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-4122 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3368-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2013-4122 · Security Note
• https://osv.dev/vulnerability/DSA-3368-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2013-4122 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-2755-1 · Vendor Advisory
• http://ubuntu.com/usn/USN-2755-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-4122 · Security Note
• https://osv.dev/vulnerability/CVE-2013-4122 · Vendor Advisory
• http://debian.org/security/2015/dsa-3368 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2013-4122 · Vendor Advisory