WebKit security holes haunt Ubuntu

Summary:According to an Ubuntu security alert, the WebKit flaws are dangerous enough to cause arbitrary code execution attacks.

The Ubuntu Linux operating system has been refreshed to fix multiple WebKit flaws that expose users to malicious hacker attacks.

According to an Ubuntu security alert, the flaws are dangerous enough to cause arbitrary code execution attacks.

From the alert:

A large number of security issues were discovered in the WebKit browser and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

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Ubuntu documents 22 different vulnerabilities affecting Ubuntu 10.10 and Ubuntu 10.04 LTS.

A separate vulnerability in the open-source operating system was also fixed to block an issue that lets attackers use eCryptfs to unmount arbitrary locations and cause a denial-of-service condition.

It was discovered that eCryptfs incorrectly handled permissions whenmodifying the mtab file. A local attacker could use this flaw to manipulate the mtab file, and possibly unmount arbitrary locations, leading to a denial of service.

The ecryptfs-utils vulnerability affects Ubuntu 11.04, Ubuntu 10.10 and Ubuntu 10.04 LTS.

Topics: Security, Open Source

About

Ryan Naraine is a journalist and social media enthusiast specializing in Internet and computer security issues. He is currently security evangelist at Kaspersky Lab, an anti-malware company with operations around the globe. He is taking a leadership role in developing the company's online community initiative around secure content managem... Full Bio

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