SUSE update for libxml2



| Updated: 2023-02-08
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2016-3709
CVE-2022-40303
CVE-2022-40304
CWE-ID CWE-79
CWE-190
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SUSE OpenStack Cloud Crowbar
Operating systems & Components / Operating system

SUSE Linux Enterprise Software Development Kit
Operating systems & Components / Operating system

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

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

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE OpenStack Cloud
Operating systems & Components / Operating system

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

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

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

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

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

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

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

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

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

Vendor SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU66123

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

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

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5

SUSE OpenStack Cloud: 9

libxml2-devel: before 2.9.4-46.59.2

python-libxml2-debugsource: before 2.9.4-46.59.3

python-libxml2-debuginfo: before 2.9.4-46.59.3

python-libxml2: before 2.9.4-46.59.3

libxml2-tools-debuginfo: before 2.9.4-46.59.2

libxml2-tools: before 2.9.4-46.59.2

libxml2-debugsource: before 2.9.4-46.59.2

libxml2-2-debuginfo-32bit: before 2.9.4-46.59.2

libxml2-2-debuginfo: before 2.9.4-46.59.2

libxml2-2-32bit: before 2.9.4-46.59.2

libxml2-2: before 2.9.4-46.59.2

libxml2-doc: before 2.9.4-46.59.2

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223717-1/


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

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-2022-40303

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

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5

SUSE OpenStack Cloud: 9

libxml2-devel: before 2.9.4-46.59.2

python-libxml2-debugsource: before 2.9.4-46.59.3

python-libxml2-debuginfo: before 2.9.4-46.59.3

python-libxml2: before 2.9.4-46.59.3

libxml2-tools-debuginfo: before 2.9.4-46.59.2

libxml2-tools: before 2.9.4-46.59.2

libxml2-debugsource: before 2.9.4-46.59.2

libxml2-2-debuginfo-32bit: before 2.9.4-46.59.2

libxml2-2-debuginfo: before 2.9.4-46.59.2

libxml2-2-32bit: before 2.9.4-46.59.2

libxml2-2: before 2.9.4-46.59.2

libxml2-doc: before 2.9.4-46.59.2

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223717-1/


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

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-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

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5

SUSE OpenStack Cloud: 9

libxml2-devel: before 2.9.4-46.59.2

python-libxml2-debugsource: before 2.9.4-46.59.3

python-libxml2-debuginfo: before 2.9.4-46.59.3

python-libxml2: before 2.9.4-46.59.3

libxml2-tools-debuginfo: before 2.9.4-46.59.2

libxml2-tools: before 2.9.4-46.59.2

libxml2-debugsource: before 2.9.4-46.59.2

libxml2-2-debuginfo-32bit: before 2.9.4-46.59.2

libxml2-2-debuginfo: before 2.9.4-46.59.2

libxml2-2-32bit: before 2.9.4-46.59.2

libxml2-2: before 2.9.4-46.59.2

libxml2-doc: before 2.9.4-46.59.2

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223717-1/


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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