SUSE update for libxml2

1) Out-of-bounds read

EUVDB-ID: #VU81044

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-2023-39615

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the xmlSAX2StartElement() function in /libxml2/SAX2.c. A remote attacker can pass specially crafted XML input to the application, trigger an out-of-bounds read error 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 for Rancher: 5.3 - 5.4

Python 3 Module: 15-SP4

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

libxml2-2-64bit-debuginfo: before 2.9.14-150400.5.22.1

libxml2-devel-64bit: before 2.9.14-150400.5.22.1

libxml2-2-64bit: before 2.9.14-150400.5.22.1

libxml2-doc: before 2.9.14-150400.5.22.1

libxml2-devel-32bit: before 2.9.14-150400.5.22.1

libxml2-2-32bit-debuginfo: before 2.9.14-150400.5.22.1

libxml2-2-32bit: before 2.9.14-150400.5.22.1

libxml2-2-debuginfo: before 2.9.14-150400.5.22.1

python3-libxml2: before 2.9.14-150400.5.22.1

libxml2-devel: before 2.9.14-150400.5.22.1

libxml2-tools: before 2.9.14-150400.5.22.1

python311-libxml2: before 2.9.14-150400.5.22.1

python3-libxml2-debuginfo: before 2.9.14-150400.5.22.1

libxml2-python-debugsource: before 2.9.14-150400.5.22.1

libxml2-2: before 2.9.14-150400.5.22.1

libxml2-debugsource: before 2.9.14-150400.5.22.1

python311-libxml2-debuginfo: before 2.9.14-150400.5.22.1

libxml2-tools-debuginfo: before 2.9.14-150400.5.22.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:python_3_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:libxml2-2-64bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-devel-64bit:*:*:*:*:*: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:python3-libxml2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-tools:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python311-libxml2:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:python3-libxml2-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-python-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libxml2-2:*:*:*:*:*: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:libxml2-tools-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20233699-1/

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.