SUSE update for python-lxml

1) NULL pointer dereference

EUVDB-ID: #VU66813

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2309

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the iterwalk() function. A remote attacker can pass specially crafted XML data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package python-lxml to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Public Cloud: 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15

SUSE Linux Enterprise High Performance Computing: 15

SUSE Linux Enterprise Server: 15-SP2

python3-lxml-doc: before 4.7.1-150100.6.6.1

python3-lxml-devel: before 4.7.1-150100.6.6.1

python3-lxml: before 4.7.1-150100.6.6.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:python3-lxml-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python3-lxml-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python3-lxml:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222878-1/

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.