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CVE-2013-4122

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-2755-1
Posted Oct 1, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2755-1 - It was discovered that Cyrus SASL incorrectly handled certain invalid password salts. An attacker could use this issue to cause Cyrus SASL to crash, resulting in a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2013-4122
SHA-256 | 38d049abafc5e4a4847c35f41e8a0854f4fbe2628ad1e7a06f2f7eca5cd430dd
Debian Security Advisory 3368-1
Posted Sep 26, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3368-1 - It was discovered that cyrus-sasl2, a library implementing the Simple Authentication and Security Layer, does not properly handle certain invalid password salts. A remote attacker can take advantage of this flaw to cause a denial of service.

tags | advisory, remote, denial of service
systems | linux, debian
advisories | CVE-2013-4122
SHA-256 | fb30de4dfb472107cab21da532594e838feefffc940985cd87decc7dbaf7fbc4
Ubuntu Security Notice USN-1988-1
Posted Oct 9, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1988-1 - It was discovered that Cyrus SASL incorrectly handled certain invalid password salts. An attacker could use this issue to cause Cyrus SASL to crash, resulting in a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2013-4122
SHA-256 | 39d8525bda057699dec1836a6af557d5c5ce99412563368481023a98369849d3
Gentoo Linux Security Advisory 201309-01
Posted Sep 2, 2013
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201309-1 - A NULL pointer dereference in Cyrus-SASL may allow remote attackers to cause a Denial of Service condition. Versions less than 2.1.26-r3 are affected.

tags | advisory, remote, denial of service
systems | linux, gentoo
advisories | CVE-2013-4122
SHA-256 | ab968551f4e15425cd83161245fa5213284ec0cc8224de16f469841985abbc43
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