SUSE SLED12 / SLES12 Security Update : webkit2gtk3 (SUSE-SU-2021:3296-1)

high Nessus Plugin ID 153904

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Synopsis

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

Description

The remote SUSE Linux SLED12 / SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3296-1 advisory.

- An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability. (CVE-2021-21806)

- A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. (CVE-2021-30858)

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.

Plugin Details

Severity: High

ID: 153904

File Name: suse_SU-2021-3296-1.nasl

Version: 1.6

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/7/2021

Updated: 1/26/2022

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

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

CVSS Score Source: CVE-2021-30858

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

Temporal Vector: E:H/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:12

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/6/2021

Vulnerability Publication Date: 7/8/2021

CISA Known Exploited Dates: 11/17/2021

Reference Information

CVE: CVE-2021-21806, CVE-2021-30858

SuSE: SUSE-SU-2021:3296-1

IAVA: 2021-A-0414-S, 2021-A-0437-S