Detections
Analytics
CentOS Linux 7 [TuxCare] Security Update: expat / expat-devel / expat-static Multiple Vulnerabilities (CENTOS7:CLSA-2023:1696877712)
high Nessus Plugin ID 359838
Synopsis
The CentOS Linux host is missing one or more security updates.Description
The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2023:1696877712 advisory.- Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function. (CVE-2022-23990)
- In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations. (CVE-2022-43680)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages based on the guidance in TuxCare advisory CENTOS7:CLSA-2023:1696877712.See Also
Plugin Details
Severity: High
ID: 359838
File Name: tuxcare_centos_7_CLSA-2023-1696877712.nasl
Version: 1.1
Type: Local
Agent: unix
Family: CentOS Local Security Checks
Published: 10/1/2026
Updated: 10/1/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 94.66
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2022-23990
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2022-43680
Vulnerability Information
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/9/2023
Vulnerability Publication Date: 1/26/2022
Reference Information
CVE: CVE-2022-23990, CVE-2022-43680
CLSA: 2023:1696877712