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CVE-2013-4122

Date: October 26, 2013

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.

Language: C

Severity Score

Related Resources (12)

http://www.openwall.com/lists/oss-security/2013/07/13/1
http://www.openwall.com/lists/oss-security/2013/07/15/1
https://nvd.nist.gov/vuln/detail/CVE-2013-4122
http://www.openwall.com/lists/oss-security/2013/07/12/3
http://www.debian.org/security/2015/dsa-3368
http://security.gentoo.org/glsa/glsa-201309-01.xml
http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d
http://www.openwall.com/lists/oss-security/2013/07/12/6
https://security-tracker.debian.org/tracker/CVE-2013-4122
https://www.linuxquestions.org/questions/slackware-14/%5Bslackware-current%5D-glibc-2-17-shadow-and-other-penumbrae-4175461061/
http://www.ubuntu.com/usn/USN-2755-1
https://www.mend.io/vulnerability-database/CVE-2013-4122

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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