Red Hat Enterprise Linux 8.4 Extended Update Support update for expat



Published: 2022-06-01 | Updated: 2022-09-21
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-23852
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Operating systems & Components / Operating system package or component

expat (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Server - TUS
Operating systems & Components / Operating system

Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server - AUS
Operating systems & Components / Operating system

Red Hat Enterprise Linux for x86_64 - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Operating systems & Components / Operating system

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU59966

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-23852

CWE-ID: CWE-190 - Integer Overflow or Wraparound

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions: 8.4

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.4

Red Hat Enterprise Linux Server - TUS: 8.4

Red Hat Enterprise Linux for Power, little endian - Extended Update Support: 8.4

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 8.4

Red Hat Enterprise Linux Server - AUS: 8.4

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.4

Red Hat Enterprise Linux for ARM 64 - Extended Update Support: 8.4

expat (Red Hat package): before 2.2.5-4.el8_4.3


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2022:4834

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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