Detections
Analytics
Amazon Linux AMI : expat (ALAS-2012-89)
medium Nessus Plugin ID 69696
Language:
Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
A denial of service flaw was found in the implementation of hash arrays in Expat. An attacker could use this flaw to make an application using Expat consume an excessive amount of CPU time by providing a specially crafted XML file that triggers multiple hash function collisions. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0876)A memory leak flaw was found in Expat. If an XML file processed by an application linked against Expat triggered a memory re-allocation failure, Expat failed to free the previously allocated memory. This could cause the application to exit unexpectedly or crash when all available memory is exhausted. (CVE-2012-1148)
Solution
Run 'yum update expat' to update your system.See Also
Plugin Details
Severity: Medium
ID: 69696
File Name: ala_ALAS-2012-89.nasl
Version: 1.6
Type: local
Agent: unix
Published: 9/4/2013
Updated: 4/18/2018
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:expat, p-cpe:/a:amazon:linux:expat-debuginfo, p-cpe:/a:amazon:linux:expat-devel, cpe:/o:amazon:linux
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Patch Publication Date: 6/19/2012
Reference Information
CVE: CVE-2012-0876, CVE-2012-1148