SUSE update for libxml2

Published: 2023-04-26

Risk	High
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-3541 CVE-2022-29824 CVE-2023-28484 CVE-2023-29469
CWE-ID	CWE-20 CWE-190 CWE-476 CWE-399
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Micro for Rancher Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP3 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP2 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP1 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise Real Time 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing LTSS 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing ESPOS 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system libxml2-2-32bit Operating systems & Components / Operating system package or component libxml2-2-32bit-debuginfo Operating systems & Components / Operating system package or component libxml2-tools-debuginfo Operating systems & Components / Operating system package or component python2-libxml2-python-debuginfo Operating systems & Components / Operating system package or component libxml2-2 Operating systems & Components / Operating system package or component libxml2-tools Operating systems & Components / Operating system package or component libxml2-debugsource Operating systems & Components / Operating system package or component python2-libxml2-python Operating systems & Components / Operating system package or component libxml2-2-debuginfo Operating systems & Components / Operating system package or component libxml2-devel Operating systems & Components / Operating system package or component python3-libxml2-python-debuginfo Operating systems & Components / Operating system package or component python-libxml2-python-debugsource Operating systems & Components / Operating system package or component python3-libxml2-python Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU53289

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3541

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 insufficient validation of user-supplied input. A remote attacker can pass 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 for Rancher: 5.2

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS: 15-SP1

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE CaaS Platform: 4.0

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

openSUSE Leap: 15.4

libxml2-2-32bit: before 2.9.7-150000.3.57.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.57.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.57.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

libxml2-2: before 2.9.7-150000.3.57.1

libxml2-tools: before 2.9.7-150000.3.57.1

libxml2-debugsource: before 2.9.7-150000.3.57.1

python2-libxml2-python: before 2.9.7-150000.3.57.1

libxml2-2-debuginfo: before 2.9.7-150000.3.57.1

libxml2-devel: before 2.9.7-150000.3.57.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.57.1

python3-libxml2-python: before 2.9.7-150000.3.57.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232048-1/

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

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

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 Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS: 15-SP1

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE CaaS Platform: 4.0

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

openSUSE Leap: 15.4

libxml2-2-32bit: before 2.9.7-150000.3.57.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.57.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.57.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

libxml2-2: before 2.9.7-150000.3.57.1

libxml2-tools: before 2.9.7-150000.3.57.1

libxml2-debugsource: before 2.9.7-150000.3.57.1

python2-libxml2-python: before 2.9.7-150000.3.57.1

libxml2-2-debuginfo: before 2.9.7-150000.3.57.1

libxml2-devel: before 2.9.7-150000.3.57.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.57.1

python3-libxml2-python: before 2.9.7-150000.3.57.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232048-1/

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.

3) NULL pointer dereference

EUVDB-ID: #VU74863

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-28484

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 in xmlSchemaFixupComplexType. A remote attacker can pass specially crafted data 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 for Rancher: 5.2

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS: 15-SP1

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE CaaS Platform: 4.0

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

openSUSE Leap: 15.4

libxml2-2-32bit: before 2.9.7-150000.3.57.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.57.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.57.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

libxml2-2: before 2.9.7-150000.3.57.1

libxml2-tools: before 2.9.7-150000.3.57.1

libxml2-debugsource: before 2.9.7-150000.3.57.1

python2-libxml2-python: before 2.9.7-150000.3.57.1

libxml2-2-debuginfo: before 2.9.7-150000.3.57.1

libxml2-devel: before 2.9.7-150000.3.57.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.57.1

python3-libxml2-python: before 2.9.7-150000.3.57.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232048-1/

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.

4) Resource management error

EUVDB-ID: #VU74862

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-29469

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources when working with hashes of empty dict strings. A remote attacker can 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: 5.2

SUSE Linux Enterprise Server for SAP Applications 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3

SUSE Linux Enterprise Server 15: SP1 - SP3

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise High Performance Computing LTSS 15: SP3

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3

SUSE Linux Enterprise High Performance Computing 15: SP1 - SP3

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS: 15-SP1

SUSE Enterprise Storage: 7.1

SUSE Manager Retail Branch Server: 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE CaaS Platform: 4.0

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

openSUSE Leap: 15.4

libxml2-2-32bit: before 2.9.7-150000.3.57.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.57.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.57.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

libxml2-2: before 2.9.7-150000.3.57.1

libxml2-tools: before 2.9.7-150000.3.57.1

libxml2-debugsource: before 2.9.7-150000.3.57.1

python2-libxml2-python: before 2.9.7-150000.3.57.1

libxml2-2-debuginfo: before 2.9.7-150000.3.57.1

libxml2-devel: before 2.9.7-150000.3.57.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.57.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.57.1

python3-libxml2-python: before 2.9.7-150000.3.57.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232048-1/

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.