USN-836-1: WebKit vulnerabilities

23 September 2009

webkit vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 9.04
  • Ubuntu 8.10

Software Description

  • webkit

Details

It was discovered that WebKit did not properly handle certain SVGPathList data structures. If a user were tricked into viewing a malicious website, an attacker could exploit this to execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-0945)

Several flaws were discovered in the WebKit browser and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-1687, CVE-2009-1690, CVE-2009-1698, CVE-2009-1711, CVE-2009-1725)

It was discovered that WebKit did not prevent the loading of local Java applets. If a user were tricked into viewing a malicious website, an attacker could exploit this to execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-1712)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.04
libwebkit-1.0-1 - 1.0.1-4ubuntu0.1
libwebkit-1.0-1-dbg - 1.0.1-4ubuntu0.1
libwebkit-dev - 1.0.1-4ubuntu0.1
Ubuntu 8.10
libwebkit-1.0-1 - 1.0.1-2ubuntu0.2
libwebkit-1.0-1-dbg - 1.0.1-2ubuntu0.2
libwebkit-dev - 1.0.1-2ubuntu0.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system upgrade you need to restart any applications that use WebKit, such as Epiphany-webkit and Midori, to effect the necessary changes.

References