SUSE update for webkit2gtk3

Published: 2021-11-23

Risk	High
Patch available	YES
Number of vulnerabilities	3
CVE-ID	CVE-2021-30846 CVE-2021-30851 CVE-2021-42762
CWE-ID	CWE-119 CWE-264
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Enterprise Storage Operating systems & Components / Operating system SUSE CaaS Platform Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system libwebkit2gtk3-lang Operating systems & Components / Operating system package or component webkit2gtk3-devel Operating systems & Components / Operating system package or component webkit2gtk3-debugsource Operating systems & Components / Operating system package or component webkit2gtk-4_0-injected-bundles-debuginfo Operating systems & Components / Operating system package or component webkit2gtk-4_0-injected-bundles Operating systems & Components / Operating system package or component typelib-1_0-WebKit2WebExtension-4_0 Operating systems & Components / Operating system package or component typelib-1_0-WebKit2-4_0 Operating systems & Components / Operating system package or component typelib-1_0-JavaScriptCore-4_0 Operating systems & Components / Operating system package or component libwebkit2gtk-4_0-37-debuginfo Operating systems & Components / Operating system package or component libwebkit2gtk-4_0-37 Operating systems & Components / Operating system package or component libjavascriptcoregtk-4_0-18-debuginfo Operating systems & Components / Operating system package or component libjavascriptcoregtk-4_0-18 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Memory corruption

EUVDB-ID: #VU56730

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30846

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content in WebKit. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption 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 webkit2gtk3 to the latest version.

Vulnerable software versions

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

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

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

libwebkit2gtk3-lang: before 2.34.1-3.87.1

webkit2gtk3-devel: before 2.34.1-3.87.1

webkit2gtk3-debugsource: before 2.34.1-3.87.1

webkit2gtk-4_0-injected-bundles-debuginfo: before 2.34.1-3.87.1

webkit2gtk-4_0-injected-bundles: before 2.34.1-3.87.1

typelib-1_0-WebKit2WebExtension-4_0: before 2.34.1-3.87.1

typelib-1_0-WebKit2-4_0: before 2.34.1-3.87.1

typelib-1_0-JavaScriptCore-4_0: before 2.34.1-3.87.1

libwebkit2gtk-4_0-37-debuginfo: before 2.34.1-3.87.1

libwebkit2gtk-4_0-37: before 2.34.1-3.87.1

libjavascriptcoregtk-4_0-18-debuginfo: before 2.34.1-3.87.1

libjavascriptcoregtk-4_0-18: before 2.34.1-3.87.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213769-1/

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) Memory corruption

EUVDB-ID: #VU56733

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30851

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to 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 webkit2gtk3 to the latest version.

Vulnerable software versions

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

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

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

libwebkit2gtk3-lang: before 2.34.1-3.87.1

webkit2gtk3-devel: before 2.34.1-3.87.1

webkit2gtk3-debugsource: before 2.34.1-3.87.1

webkit2gtk-4_0-injected-bundles-debuginfo: before 2.34.1-3.87.1

webkit2gtk-4_0-injected-bundles: before 2.34.1-3.87.1

typelib-1_0-WebKit2WebExtension-4_0: before 2.34.1-3.87.1

typelib-1_0-WebKit2-4_0: before 2.34.1-3.87.1

typelib-1_0-JavaScriptCore-4_0: before 2.34.1-3.87.1

libwebkit2gtk-4_0-37-debuginfo: before 2.34.1-3.87.1

libwebkit2gtk-4_0-37: before 2.34.1-3.87.1

libjavascriptcoregtk-4_0-18-debuginfo: before 2.34.1-3.87.1

libjavascriptcoregtk-4_0-18: before 2.34.1-3.87.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213769-1/

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) Security restrictions bypass

EUVDB-ID: #VU57811

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42762

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists in BubblewrapLauncher.cpp due to application allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox. A local user can abuse the VFS syscalls that manipulate its filesystem namespace and bypass implemented security restrictions. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined.

Mitigation

Update the affected package webkit2gtk3 to the latest version.

Vulnerable software versions

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

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

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

libwebkit2gtk3-lang: before 2.34.1-3.87.1

webkit2gtk3-devel: before 2.34.1-3.87.1

webkit2gtk3-debugsource: before 2.34.1-3.87.1

webkit2gtk-4_0-injected-bundles-debuginfo: before 2.34.1-3.87.1

webkit2gtk-4_0-injected-bundles: before 2.34.1-3.87.1

typelib-1_0-WebKit2WebExtension-4_0: before 2.34.1-3.87.1

typelib-1_0-WebKit2-4_0: before 2.34.1-3.87.1

typelib-1_0-JavaScriptCore-4_0: before 2.34.1-3.87.1

libwebkit2gtk-4_0-37-debuginfo: before 2.34.1-3.87.1

libwebkit2gtk-4_0-37: before 2.34.1-3.87.1

libjavascriptcoregtk-4_0-18-debuginfo: before 2.34.1-3.87.1

libjavascriptcoregtk-4_0-18: before 2.34.1-3.87.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213769-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.