Rapid7 Vulnerability & Exploit Database

Alpine Linux: CVE-2013-4122: cyrus-sasl NULL pointer dereference (DoS) when glibc v.2.17 or FIPS-140 enabled Linux system used

Back to Search

Alpine Linux: CVE-2013-4122: cyrus-sasl NULL pointer dereference (DoS) when glibc v.2.17 or FIPS-140 enabled Linux system used

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
10/26/2013
Created
07/25/2018
Added
08/30/2017
Modified
01/29/2019

Description

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.

Solution(s)

  • alpine-linux-upgrade-cyrus-sasl
  • alpine-linux-upgrade-hostapd

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;