Security Bulletin: A security vulnerability has been disclosed in Expat, which is installed as part of IBM Tivoli Network Manager (CVE-2023-52425).

Summary

A security vulnerability has been disclosed in the Expat library libexpat, which is installed as part of IBM Tivoli Network Manager. Information about this vulnerability has been published in a security bulletin.

Vulnerability Details

CVEID:CVE-2023-52425
**DESCRIPTION:**libexpat is vulnerable to a denial of service, caused by improper system resource allocation. By sending a specially crafted request using an overly large token, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/281438 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-52426
**DESCRIPTION:**libexpat is vulnerable to a denial of service, caused by an XML entity expansion flaw if XML_DTD is undefined at compile time. By compiling specially crafted XML input, a local attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/281439 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

Upgrade to ITNM 4.2 Fix Pack 19 (4.2.0.19).

Download FP19 from the following locations from fixcentral.

AIX: 4.2.0-TIV-ITNMIP-AIX-FP0019

Linux: 4.2.0-TIV-ITNMIP-Linux-FP0019

zLinux:4.2.0-TIV-ITNMIP-zLinux-FP0019

Workarounds and Mitigations

None