SUSE update for libxml2



| Updated: 2022-11-15
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-23308
CVE-2022-29824
CWE-ID CWE-416
CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
SUSE Manager Retail Branch Server
Operating systems & Components / Operating system

SUSE Manager Server
Operating systems & Components / Operating system

SUSE Manager Proxy
Operating systems & Components / Operating system

SUSE Linux Enterprise Module for Basesystem
Operating systems & Components / Operating system

SUSE Linux Enterprise Desktop
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

openSUSE Leap
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP Applications
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

libxml2-doc
Operating systems & Components / Operating system package or component

libxml2-devel-32bit
Operating systems & Components / Operating system package or component

libxml2-2-32bit-debuginfo
Operating systems & Components / Operating system package or component

libxml2-2-32bit
Operating systems & Components / Operating system package or component

python3-libxml2-debuginfo
Operating systems & Components / Operating system package or component

python3-libxml2
Operating systems & Components / Operating system package or component

libxml2-tools-debuginfo
Operating systems & Components / Operating system package or component

libxml2-tools
Operating systems & Components / Operating system package or component

libxml2-devel
Operating systems & Components / Operating system package or component

libxml2-debugsource
Operating systems & Components / Operating system package or component

libxml2-2-debuginfo
Operating systems & Components / Operating system package or component

libxml2-2
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU60922

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-23308

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing ID and IDREF attributes in valid.c. A remote attacker can pass specially crafted XML input to the application, trigger a use-after-free error and crash the application or execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected package libxml2 to the latest version.

Vulnerable software versions

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Module for Basesystem: 15-SP4

SUSE Linux Enterprise Desktop: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

libxml2-doc: before 2.9.14-150400.5.7.1

libxml2-devel-32bit: before 2.9.14-150400.5.7.1

libxml2-2-32bit-debuginfo: before 2.9.14-150400.5.7.1

libxml2-2-32bit: before 2.9.14-150400.5.7.1

python3-libxml2-debuginfo: before 2.9.14-150400.5.7.1

python3-libxml2: before 2.9.14-150400.5.7.1

libxml2-tools-debuginfo: before 2.9.14-150400.5.7.1

libxml2-tools: before 2.9.14-150400.5.7.1

libxml2-devel: before 2.9.14-150400.5.7.1

libxml2-debugsource: before 2.9.14-150400.5.7.1

libxml2-2-debuginfo: before 2.9.14-150400.5.7.1

libxml2-2: before 2.9.14-150400.5.7.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222552-1/


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.

2) Integer overflow

EUVDB-ID: #VU62741

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-29824

CWE-ID: CWE-190 - Integer overflow

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 several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*). A remote attacker can pass specially crafted multi-gigabyte XML file 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

Update the affected package libxml2 to the latest version.

Vulnerable software versions

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Module for Basesystem: 15-SP4

SUSE Linux Enterprise Desktop: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

libxml2-doc: before 2.9.14-150400.5.7.1

libxml2-devel-32bit: before 2.9.14-150400.5.7.1

libxml2-2-32bit-debuginfo: before 2.9.14-150400.5.7.1

libxml2-2-32bit: before 2.9.14-150400.5.7.1

python3-libxml2-debuginfo: before 2.9.14-150400.5.7.1

python3-libxml2: before 2.9.14-150400.5.7.1

libxml2-tools-debuginfo: before 2.9.14-150400.5.7.1

libxml2-tools: before 2.9.14-150400.5.7.1

libxml2-devel: before 2.9.14-150400.5.7.1

libxml2-debugsource: before 2.9.14-150400.5.7.1

libxml2-2-debuginfo: before 2.9.14-150400.5.7.1

libxml2-2: before 2.9.14-150400.5.7.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222552-1/


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.



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