Arch Linux Security Advisory ASA-202110-10
=========================================
Severity: Medium
Date    : 2021-10-29
CVE-ID  : CVE-2021-30846 CVE-2021-30851 CVE-2021-42762
Package : wpewebkit
Type    : multiple issues
Remote  : Yes
Link    : https://security.archlinux.org/AVG-2484

Summary
======
The package wpewebkit before version 2.34.1-1 is vulnerable to multiple
issues including arbitrary code execution and sandbox escape.

Resolution
=========
Upgrade to 2.34.1-1.

# pacman -Syu "wpewebkit>=2.34.1-1"

The problems have been fixed upstream in version 2.34.1.

Workaround
=========
None.

Description
==========
- CVE-2021-30846 (arbitrary code execution)

A security issue has been found in WebKitGTK and WPE WebKit before
2.34.0. Processing maliciously crafted web content may lead to
arbitrary code execution.

- CVE-2021-30851 (arbitrary code execution)

A security issue has been found in WebKitGTK and WPE WebKit before
2.34.0. Processing maliciously crafted web content may lead to
arbitrary code execution.

- CVE-2021-42762 (sandbox escape)

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.

Impact
=====
A remote attacker could execute arbitrary code or escape the
confinements of the security sandbox through crafted web content.

References
=========
https://webkitgtk.org/security/WSA-2021-0006.html#CVE-2021-30846
https://webkitgtk.org/security/WSA-2021-0006.html#CVE-2021-30851
https://webkitgtk.org/security/WSA-2021-0006.html#CVE-2021-42762
https://bugs.webkit.org/show_bug.cgi?id=231479
https://trac.webkit.org/changeset/284451/webkit
https://security.archlinux.org/CVE-2021-30846
https://security.archlinux.org/CVE-2021-30851
https://security.archlinux.org/CVE-2021-42762

ArchLinux: 202110-10: wpewebkit: multiple issues

November 1, 2021

Summary

- CVE-2021-30846 (arbitrary code execution) A security issue has been found in WebKitGTK and WPE WebKit before 2.34.0. Processing maliciously crafted web content may lead to arbitrary code execution.
- CVE-2021-30851 (arbitrary code execution)
A security issue has been found in WebKitGTK and WPE WebKit before 2.34.0. Processing maliciously crafted web content may lead to arbitrary code execution.
- CVE-2021-42762 (sandbox escape)
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.

Resolution

Upgrade to 2.34.1-1. # pacman -Syu "wpewebkit>=2.34.1-1"
The problems have been fixed upstream in version 2.34.1.

References

https://webkitgtk.org/security/WSA-2021-0006.html#CVE-2021-30846 https://webkitgtk.org/security/WSA-2021-0006.html#CVE-2021-30851 https://webkitgtk.org/security/WSA-2021-0006.html#CVE-2021-42762 https://bugs.webkit.org/show_bug.cgi?id=231479 https://trac.webkit.org/changeset/284451/webkit https://security.archlinux.org/CVE-2021-30846 https://security.archlinux.org/CVE-2021-30851 https://security.archlinux.org/CVE-2021-42762

Severity
Package : wpewebkit
Type : multiple issues
Remote : Yes
Link : https://security.archlinux.org/AVG-2484

Workaround

None.

Related News

CISA Sounds Alarm on Newly Exploited Vulnerabilities: Is Your System at Risk?
3 - 5 min read
CISA regularly publishes updates regarding vulnerabilities that present severe threats to global cybersecurity. Recently, CISA added three
Navigating the Linux Kernel
2 - 4 min read
The Linux operating system, widely acclaimed for its robustness and security , recently received widespread media attention due to a significant
Defending Against Remote Code Execution in Google Chrome: A Critical Update
2 - 3 min read
Google Chrome, a widely used web browser, serves millions of internet users by connecting them to the online world. Unfortunately, severe
Staying a Step Ahead of Adversaries: Mitigating Chromium
2 - 4 min read
Google Chrome, one of the world's most widely used web browsers, has recently been scrutinized due to the discovery of multiple Chromium
Unmasking Cicada3301: Examining the Threat of the New Rust-Based Ransomware
2 - 4 min read
Ransomware has long been a severe threat to organizations and admins alike. Recently, cybersecurity researchers discovered a new variant called
Buffer Overflow Exploits in Linux: Origins, Impact, and Countermeasures
3 - 6 min read
Buffer overflow vulnerabilities have long been one of the biggest headaches in computer security, especially on Linux operating systems that power
8 Expert-Recommended Security Practices to Fortify Your Linux Systems
4 - 8 min read
As a Linux admin or an infosec professional, you understand how the security landscape changes due to evolving threats, newly discovered
Open Source Strategies for Enhancing Security in Digital Business Operations
5 - 9 min read
Digital transformation, powered by the principles of open-source security , is vital for businesses looking to excel in today's technology-driven

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved