Detections
Analytics
Amazon Linux AMI : expat (ALAS-2022-1573)
critical Nessus Plugin ID 158790
Language:
Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
The version of expat installed on the remote host is prior to 2.1.0-12.27. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1573 advisory.- xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context. (CVE-2022-25235)
- xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs. (CVE-2022-25236)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update expat' to update your system.See Also
https://alas.aws.amazon.com/ALAS-2022-1573.html
Plugin Details
Severity: Critical
ID: 158790
File Name: ala_ALAS-2022-1573.nasl
Version: 1.3
Type: local
Agent: unix
Published: 3/10/2022
Updated: 5/25/2022
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2022-25236
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:expat-debuginfo, p-cpe:/a:amazon:linux:expat-devel, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:expat
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/9/2022
Vulnerability Publication Date: 2/16/2022
Reference Information
CVE: CVE-2022-25235, CVE-2022-25236
ALAS: 2022-1573