Debian DSA-4877-1 : webkit2gtk - security update

critical Nessus Plugin ID 148236

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Synopsis

The remote Debian host is missing a security-related update.

Description

The following vulnerabilities have been discovered in the webkit2gtk web engine :

- CVE-2020-27918 Liu Long discovered that processing maliciously crafted web content may lead to arbitrary code execution.

- CVE-2020-29623 Simon Hunt discovered that users may be unable to fully delete their browsing history under some circumstances.

- CVE-2021-1765 Eliya Stein discovered that maliciously crafted web content may violate iframe sandboxing policy.

- CVE-2021-1789 @S0rryMybad discovered that processing maliciously crafted web content may lead to arbitrary code execution.

- CVE-2021-1799 Gregory Vishnepolsky, Ben Seri and Samy Kamkar discovered that a malicious website may be able to access restricted ports on arbitrary servers.

- CVE-2021-1801 Eliya Stein discovered that processing maliciously crafted web content may lead to arbitrary code execution.

- CVE-2021-1870 An anonymous researcher discovered that processing maliciously crafted web content may lead to arbitrary code execution.

Solution

Upgrade the webkit2gtk packages.

For the stable distribution (buster), these problems have been fixed in version 2.30.6-1~deb10u1.

Plugin Details

Severity: Critical

ID: 148236

File Name: debian_DSA-4877.nasl

Version: 1.8

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/30/2021

Updated: 5/6/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-1870

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:webkit2gtk

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/27/2021

Vulnerability Publication Date: 12/8/2020

CISA Known Exploited Vulnerability Due Dates: 11/17/2021, 5/25/2022

Reference Information

CVE: CVE-2020-27918, CVE-2020-29623, CVE-2021-1765, CVE-2021-1789, CVE-2021-1799, CVE-2021-1801, CVE-2021-1870

DSA: 4877

Detections

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