SUSE update for libxml2

1) Use-after-free

EUVDB-ID: #VU83291

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-45322

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the xmlUnlinkNode() function in tree.c. A remote attacker can pass a specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package libxml2 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.5

Python 3 Module: 15-SP5

Basesystem Module: 15-SP5

SUSE Linux Enterprise Server for SAP Applications 15: SP5

SUSE Linux Enterprise Server 15: SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP5

SUSE Linux Enterprise Desktop 15: SP5

openSUSE Leap: 15.5

libxml2-devel-64bit: before 2.10.3-150500.5.11.1

libxml2-2-64bit-debuginfo: before 2.10.3-150500.5.11.1

libxml2-2-64bit: before 2.10.3-150500.5.11.1

libxml2-doc: before 2.10.3-150500.5.11.1

libxml2-devel-32bit: before 2.10.3-150500.5.11.1

libxml2-2-32bit-debuginfo: before 2.10.3-150500.5.11.1

libxml2-2-32bit: before 2.10.3-150500.5.11.1

libxml2-2-debuginfo: before 2.10.3-150500.5.11.1

libxml2-2: before 2.10.3-150500.5.11.1

python3-libxml2-debuginfo: before 2.10.3-150500.5.11.1

python3-libxml2: before 2.10.3-150500.5.11.1

libxml2-debugsource: before 2.10.3-150500.5.11.1

python311-libxml2-debuginfo: before 2.10.3-150500.5.11.1

python311-libxml2: before 2.10.3-150500.5.11.1

libxml2-python-debugsource: before 2.10.3-150500.5.11.1

libxml2-tools: before 2.10.3-150500.5.11.1

libxml2-devel: before 2.10.3-150500.5.11.1

libxml2-tools-debuginfo: before 2.10.3-150500.5.11.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:python_3_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:libxml2-devel-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2-64bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python3-libxml2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python3-libxml2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python311-libxml2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python311-libxml2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-python-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-tools-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20234504-1/

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.