Security update for webkit2gtk3 (important)

An update that fixes 8 vulnerabilities is now available.

Description:

This update for webkit2gtk3 to version 2.26.4 fixes the following issues:

Security issues fixed:

• CVE-2019-8835: Fixed multiple memory corruption issues (bsc#1161719).
• CVE-2019-8844: Fixed multiple memory corruption issues (bsc#1161719).
• CVE-2019-8846: Fixed a use-after-free issue (bsc#1161719).
• CVE-2020-3862: Fixed a memory handling issue (bsc#1163809).
• CVE-2020-3864: Fixed a logic issue in the DOM object context handling
  (bsc#1163809).
• CVE-2020-3865: Fixed a logic issue in the DOM object context handling
  (bsc#1163809).
• CVE-2020-3867: Fixed an XSS issue (bsc#1163809).
• CVE-2020-3868: Fixed multiple memory corruption issues that could have
  lead to arbitrary code execution (bsc#1163809).

Non-security issues fixed:

• Fixed issues while trying to play a video on NextCloud.
• Fixed vertical alignment of text containing arabic diacritics.
• Fixed build with icu 65.1.
• Fixed page loading errors with websites using HSTS.
• Fixed web process crash when displaying a KaTeX formula.
• Fixed several crashes and rendering issues.
• Switched to a single web process for Evolution and geary (bsc#1159329
  glgo#GNOME/evolution#587).

This update was imported from the SUSE:SLE-15:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Leap 15.1:

  zypper in -t patch openSUSE-2020-278=1