SUSE update for expat

1) Input validation error

EUVDB-ID: #VU60733

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-25236

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper protection against insertion of namesep characters into namespace URIs in xmlparse.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package expat to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 11-SP4-LTSS-EXTREME-CORE

SUSE Linux Enterprise Point of Sale: 11-SP3

SUSE Linux Enterprise Debuginfo: 11-SP3 - 11-SP4

expat-debugsource: before 2.0.1-88.42.22.1

expat-debuginfo: before 2.0.1-88.42.22.1

libexpat1-32bit: before 2.0.1-88.42.22.1

libexpat1: before 2.0.1-88.42.22.1

expat: before 2.0.1-88.42.22.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server:11-SP4-LTSS-EXTREME-CORE:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_point_of_sale:11-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_debuginfo:11-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_debuginfo:11-SP4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:expat-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:expat-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libexpat1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libexpat1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:expat:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-202214934-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.