Security update for webkit2gtk3 (important)

An update that fixes 13 vulnerabilities is now available.

Description:

This update for webkit2gtk3 fixes the following issues:

• Update to version 2.32.3:
• CVE-2021-21775: Fixed a use-after-free vulnerability in the way certain
  events are processed for ImageLoader objects. A specially crafted web
  page can lead to a potential information leak and further memory
  corruption. A victim must be tricked into visiting a malicious web page
  to trigger this vulnerability. (bsc#1188697)
• CVE-2021-21779: Fixed a use-after-free vulnerability in the way that
  WebKit GraphicsContext handles certain events. A specially crafted web
  page can lead to a potential information leak and further memory
  corruption. A victim must be tricked into visiting a malicious web page
  to trigger this vulnerability. (bsc#1188697)
• CVE-2021-30663: An integer overflow was addressed with improved input
  validation. (bsc#1188697)
• CVE-2021-30665: A memory corruption issue was addressed with improved
  state management. (bsc#1188697)
• CVE-2021-30689: A logic issue was addressed with improved state
  management. (bsc#1188697)
• CVE-2021-30720: A logic issue was addressed with improved restrictions.
  (bsc#1188697)
• CVE-2021-30734: Multiple memory corruption issues were addressed with
  improved memory handling. (bsc#1188697)
• CVE-2021-30744: A cross-origin issue with iframe elements was addressed
  with improved tracking of security origins. (bsc#1188697)
• CVE-2021-30749: Multiple memory corruption issues were addressed with
  improved memory handling. (bsc#1188697)
• CVE-2021-30758: A type confusion issue was addressed with improved state
  handling. (bsc#1188697)
• CVE-2021-30795: A use after free issue was addressed with improved
  memory management. (bsc#1188697)
• CVE-2021-30797: This issue was addressed with improved checks.
  (bsc#1188697)
• CVE-2021-30799: Multiple memory corruption issues were addressed with
  improved memory handling. (bsc#1188697)

This update was imported from the SUSE:SLE-15-SP2: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 15.2:

  zypper in -t patch openSUSE-2021-1101=1