SUSE SLES15 Security Update : webkit2gtk3 (SUSE-SU-2021:3769-1)

high Nessus Plugin ID 155703
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3769-1 advisory.

- A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2021-30846)

- A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution. (CVE-2021-30851)

- BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined. NOTE: this is similar to CVE-2021-41133. (CVE-2021-42762)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1191937

https://bugzilla.suse.com/1192063

http://www.nessus.org/u?aa3f1b8f

https://www.suse.com/security/cve/CVE-2021-30846

https://www.suse.com/security/cve/CVE-2021-30851

https://www.suse.com/security/cve/CVE-2021-42762

Plugin Details

Severity: High

ID: 155703

File Name: suse_SU-2021-3769-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/24/2021

Updated: 11/24/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-30851

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libjavascriptcoregtk-4_0-18, p-cpe:/a:novell:suse_linux:libwebkit2gtk-4_0-37, p-cpe:/a:novell:suse_linux:libwebkit2gtk3-lang, p-cpe:/a:novell:suse_linux:typelib-1_0-JavaScriptCore-4_0, p-cpe:/a:novell:suse_linux:typelib-1_0-WebKit2-4_0, p-cpe:/a:novell:suse_linux:typelib-1_0-WebKit2WebExtension-4_0, p-cpe:/a:novell:suse_linux:webkit2gtk-4_0-injected-bundles, p-cpe:/a:novell:suse_linux:webkit2gtk3-devel, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2021

Vulnerability Publication Date: 8/24/2021

Reference Information

CVE: CVE-2021-30846, CVE-2021-30851, CVE-2021-42762

SuSE: SUSE-SU-2021:3769-1