USN-3551-1: WebKitGTK+ vulnerabilities

Releases

• Ubuntu 17.10
• Ubuntu 16.04 ESM

Packages

• webkit2gtk - Web content engine library for GTK+

Details

Multiple security issues were discovered in the WebKitGTK+ Web and
JavaScript engines. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit these to cause a
denial of service, spoof the user interface, or execute arbitrary code.
(CVE-2018-4088, CVE-2018-4096, CVE-2017-7153, CVE-2017-7160,
CVE-2017-7161, CVE-2017-7165, CVE-2017-13884, CVE-2017-13885)

Update instructions

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

Ubuntu 17.10

• libjavascriptcoregtk-4.0-18 - 2.18.6-0ubuntu0.17.10.1
• libwebkit2gtk-4.0-37 - 2.18.6-0ubuntu0.17.10.1

Ubuntu 16.04

• libjavascriptcoregtk-4.0-18 - 2.18.6-0ubuntu0.16.04.1
• libwebkit2gtk-4.0-37 - 2.18.6-0ubuntu0.16.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK+, such as Epiphany, to make all the necessary changes.

References

• CVE-2017-13884
• CVE-2017-13885
• CVE-2017-7153
• CVE-2017-7160
• CVE-2017-7161
• CVE-2017-7165
• CVE-2018-4088
• CVE-2018-4096