SUSE update for webkit2gtk3



Published: 2021-11-23
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-42762
CWE-ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
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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

HPE Helion Openstack
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE OpenStack Cloud
Operating systems & Components / Operating system

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

libwebkit2gtk3-lang
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) 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 OpenStack Cloud Crowbar: 8 - 9

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP: 12-SP3 - 12-SP4

HPE Helion Openstack: 8

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

SUSE OpenStack Cloud: 8 - 9

webkit2gtk3-devel: before 2.32.4-2.74.5

webkit2gtk3-debugsource: before 2.32.4-2.74.5

webkit2gtk-4_0-injected-bundles-debuginfo: before 2.32.4-2.74.5

webkit2gtk-4_0-injected-bundles: before 2.32.4-2.74.5

typelib-1_0-WebKit2WebExtension-4_0: before 2.32.4-2.74.5

typelib-1_0-WebKit2-4_0: before 2.32.4-2.74.5

typelib-1_0-JavaScriptCore-4_0: before 2.32.4-2.74.5

libwebkit2gtk-4_0-37-debuginfo: before 2.32.4-2.74.5

libwebkit2gtk-4_0-37: before 2.32.4-2.74.5

libjavascriptcoregtk-4_0-18-debuginfo: before 2.32.4-2.74.5

libjavascriptcoregtk-4_0-18: before 2.32.4-2.74.5

libwebkit2gtk3-lang: before 2.32.4-2.74.5

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213768-1/


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.



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