SUSE update for libxml2

Published: 2023-09-22

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2016-3709 CVE-2023-28484 CVE-2023-29469 CVE-2023-39615
CWE-ID	CWE-79 CWE-476 CWE-399 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Software Development Kit 12 Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 12 Operating systems & Components / Operating system SUSE Linux Enterprise Server 12 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 12 Operating systems & Components / Operating system libxml2-2-debuginfo-32bit Operating systems & Components / Operating system package or component libxml2-2-32bit Operating systems & Components / Operating system package or component libxml2-doc Operating systems & Components / Operating system package or component libxml2-2-debuginfo Operating systems & Components / Operating system package or component python-libxml2 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 libxml2-tools Operating systems & Components / Operating system package or component libxml2-2 Operating systems & Components / Operating system package or component libxml2-tools-debuginfo Operating systems & Components / Operating system package or component libxml2-debugsource Operating systems & Components / Operating system package or component libxml2-devel Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

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

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

libxml2-2-debuginfo-32bit: before 2.9.4-46.65.1

libxml2-2-32bit: before 2.9.4-46.65.1

libxml2-doc: before 2.9.4-46.65.1

libxml2-2-debuginfo: before 2.9.4-46.65.1

python-libxml2: before 2.9.4-46.65.1

python-libxml2-debugsource: before 2.9.4-46.65.1

python-libxml2-debuginfo: before 2.9.4-46.65.1

libxml2-tools: before 2.9.4-46.65.1

libxml2-2: before 2.9.4-46.65.1

libxml2-tools-debuginfo: before 2.9.4-46.65.1

libxml2-debugsource: before 2.9.4-46.65.1

libxml2-devel: before 2.9.4-46.65.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233665-1/

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) 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 Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

libxml2-2-debuginfo-32bit: before 2.9.4-46.65.1

libxml2-2-32bit: before 2.9.4-46.65.1

libxml2-doc: before 2.9.4-46.65.1

libxml2-2-debuginfo: before 2.9.4-46.65.1

python-libxml2: before 2.9.4-46.65.1

python-libxml2-debugsource: before 2.9.4-46.65.1

python-libxml2-debuginfo: before 2.9.4-46.65.1

libxml2-tools: before 2.9.4-46.65.1

libxml2-2: before 2.9.4-46.65.1

libxml2-tools-debuginfo: before 2.9.4-46.65.1

libxml2-debugsource: before 2.9.4-46.65.1

libxml2-devel: before 2.9.4-46.65.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233665-1/

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: #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 Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

libxml2-2-debuginfo-32bit: before 2.9.4-46.65.1

libxml2-2-32bit: before 2.9.4-46.65.1

libxml2-doc: before 2.9.4-46.65.1

libxml2-2-debuginfo: before 2.9.4-46.65.1

python-libxml2: before 2.9.4-46.65.1

python-libxml2-debugsource: before 2.9.4-46.65.1

python-libxml2-debuginfo: before 2.9.4-46.65.1

libxml2-tools: before 2.9.4-46.65.1

libxml2-2: before 2.9.4-46.65.1

libxml2-tools-debuginfo: before 2.9.4-46.65.1

libxml2-debugsource: before 2.9.4-46.65.1

libxml2-devel: before 2.9.4-46.65.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233665-1/

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) Out-of-bounds read

EUVDB-ID: #VU81044

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-2023-39615

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 Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

libxml2-2-debuginfo-32bit: before 2.9.4-46.65.1

libxml2-2-32bit: before 2.9.4-46.65.1

libxml2-doc: before 2.9.4-46.65.1

libxml2-2-debuginfo: before 2.9.4-46.65.1

python-libxml2: before 2.9.4-46.65.1

python-libxml2-debugsource: before 2.9.4-46.65.1

python-libxml2-debuginfo: before 2.9.4-46.65.1

libxml2-tools: before 2.9.4-46.65.1

libxml2-2: before 2.9.4-46.65.1

libxml2-tools-debuginfo: before 2.9.4-46.65.1

libxml2-debugsource: before 2.9.4-46.65.1

libxml2-devel: before 2.9.4-46.65.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233665-1/

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.