Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2013-4122

Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) 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.

Published

2013-10-27T00:55:03.773

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-189

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cmu	cyrus-sasl	≤ 2.1.26	Yes
Application	cmu	cyrus-sasl	1.5.28	Yes
Application	cmu	cyrus-sasl	2.1.19	Yes
Application	cmu	cyrus-sasl	2.1.20	Yes
Application	cmu	cyrus-sasl	2.1.21	Yes
Application	cmu	cyrus-sasl	2.1.22	Yes
Application	cmu	cyrus-sasl	2.1.23	Yes
Application	cmu	cyrus-sasl	2.1.24	Yes
Application	cmu	cyrus-sasl	2.1.25	Yes
Application	gnu	glibc	2.2	No
Application	gnu	glibc	2.2.1	No
Application	gnu	glibc	2.2.2	No
Application	gnu	glibc	2.2.3	No
Application	gnu	glibc	2.2.4	No
Application	gnu	glibc	2.2.5	No
Application	gnu	glibc	2.3	No
Application	gnu	glibc	2.3.1	No
Application	gnu	glibc	2.3.2	No
Application	gnu	glibc	2.3.3	No
Application	gnu	glibc	2.3.4	No
Application	gnu	glibc	2.3.5	No
Application	gnu	glibc	2.3.6	No
Application	gnu	glibc	2.3.10	No
Application	gnu	glibc	2.4	No
Application	gnu	glibc	2.5	No
Application	gnu	glibc	2.5.1	No
Application	gnu	glibc	2.6	No
Application	gnu	glibc	2.6.1	No
Application	gnu	glibc	2.7	No
Application	gnu	glibc	2.8	No
Application	gnu	glibc	2.9	No
Application	gnu	glibc	2.17	No
Application	gnu	glibc	2.18	No

References

http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d Exploit, Patch ([email protected])
http://security.gentoo.org/glsa/glsa-201309-01.xml ([email protected])
http://www.debian.org/security/2015/dsa-3368 ([email protected])
http://www.openwall.com/lists/oss-security/2013/07/12/3 ([email protected])
http://www.openwall.com/lists/oss-security/2013/07/12/6 ([email protected])
http://www.openwall.com/lists/oss-security/2013/07/13/1 ([email protected])
http://www.openwall.com/lists/oss-security/2013/07/15/1 ([email protected])
http://www.ubuntu.com/usn/USN-2755-1 ([email protected])
https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/ ([email protected])
http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d Exploit, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-201309-01.xml (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3368 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/07/12/3 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/07/12/6 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/07/13/1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/07/15/1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2755-1 (af854a3a-2127-422b-91ae-364da2661108)
https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/ (af854a3a-2127-422b-91ae-364da2661108)