SUSE update for libxml2

1) Cross-site scripting

EUVDB-ID: #VU66123

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3709

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update the affected package libxml2 to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.2

SUSE Enterprise Storage: 6 - 7.1

SUSE Linux Enterprise Storage: 7.1

SUSE Linux Enterprise Module for Python2: 15-SP3

SUSE Manager Retail Branch Server: 4.1 - 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE Manager Server: 4.1 - 4.2

SUSE Manager Proxy: 4.1 - 4.2

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP2

SUSE Linux Enterprise Server: 15-LTSS - 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP3

SUSE Linux Enterprise Desktop: 15-SP3

SUSE CaaS Platform: 4.0

openSUSE Leap: 15.3 - 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP3

libxml2-doc: before 2.9.7-150000.3.51.1

libxml2-devel-32bit: before 2.9.7-150000.3.51.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.51.1

libxml2-2-32bit: before 2.9.7-150000.3.51.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.51.1

python2-libxml2-python: before 2.9.7-150000.3.51.1

libxml2-devel: before 2.9.7-150000.3.51.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.51.1

python3-libxml2-python: before 2.9.7-150000.3.51.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.51.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.51.1

libxml2-tools: before 2.9.7-150000.3.51.1

libxml2-debugsource: before 2.9.7-150000.3.51.1

libxml2-2-debuginfo: before 2.9.7-150000.3.51.1

libxml2-2: before 2.9.7-150000.3.51.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223871-1/

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: #VU68828

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-2022-40303

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 parse.c when processing content when XML_PARSE_HUGE is set. A remote attacker can pass specially crafted data to the application, trigger an 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

openSUSE Leap Micro: 5.2

SUSE Enterprise Storage: 6 - 7.1

SUSE Linux Enterprise Storage: 7.1

SUSE Linux Enterprise Module for Python2: 15-SP3

SUSE Manager Retail Branch Server: 4.1 - 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE Manager Server: 4.1 - 4.2

SUSE Manager Proxy: 4.1 - 4.2

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP2

SUSE Linux Enterprise Server: 15-LTSS - 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP3

SUSE Linux Enterprise Desktop: 15-SP3

SUSE CaaS Platform: 4.0

openSUSE Leap: 15.3 - 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP3

libxml2-doc: before 2.9.7-150000.3.51.1

libxml2-devel-32bit: before 2.9.7-150000.3.51.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.51.1

libxml2-2-32bit: before 2.9.7-150000.3.51.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.51.1

python2-libxml2-python: before 2.9.7-150000.3.51.1

libxml2-devel: before 2.9.7-150000.3.51.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.51.1

python3-libxml2-python: before 2.9.7-150000.3.51.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.51.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.51.1

libxml2-tools: before 2.9.7-150000.3.51.1

libxml2-debugsource: before 2.9.7-150000.3.51.1

libxml2-2-debuginfo: before 2.9.7-150000.3.51.1

libxml2-2: before 2.9.7-150000.3.51.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223871-1/

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) Resource management error

EUVDB-ID: #VU68829

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-2022-40304

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 in entities.c due to the way libxml2 handles reference cycles. The library does not anticipate that entity content can be allocated from a dict and clears it upon reference cycle detection by setting its first byte to zero. This can lead to memory corruption  issues, such as double free errors and result in a denial of service.

Mitigation

Update the affected package libxml2 to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.2

SUSE Enterprise Storage: 6 - 7.1

SUSE Linux Enterprise Storage: 7.1

SUSE Linux Enterprise Module for Python2: 15-SP3

SUSE Manager Retail Branch Server: 4.1 - 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE Manager Server: 4.1 - 4.2

SUSE Manager Proxy: 4.1 - 4.2

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP2

SUSE Linux Enterprise Server: 15-LTSS - 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP3

SUSE Linux Enterprise Desktop: 15-SP3

SUSE CaaS Platform: 4.0

openSUSE Leap: 15.3 - 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP3

libxml2-doc: before 2.9.7-150000.3.51.1

libxml2-devel-32bit: before 2.9.7-150000.3.51.1

libxml2-2-32bit-debuginfo: before 2.9.7-150000.3.51.1

libxml2-2-32bit: before 2.9.7-150000.3.51.1

python2-libxml2-python-debuginfo: before 2.9.7-150000.3.51.1

python2-libxml2-python: before 2.9.7-150000.3.51.1

libxml2-devel: before 2.9.7-150000.3.51.1

python3-libxml2-python-debuginfo: before 2.9.7-150000.3.51.1

python3-libxml2-python: before 2.9.7-150000.3.51.1

python-libxml2-python-debugsource: before 2.9.7-150000.3.51.1

libxml2-tools-debuginfo: before 2.9.7-150000.3.51.1

libxml2-tools: before 2.9.7-150000.3.51.1

libxml2-debugsource: before 2.9.7-150000.3.51.1

libxml2-2-debuginfo: before 2.9.7-150000.3.51.1

libxml2-2: before 2.9.7-150000.3.51.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223871-1/

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.