(RHSA-2022:1777) Moderate: webkit2gtk3 security, bug fix, and enhancement update

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

The following packages have been upgraded to a later upstream version: webkit2gtk3 (2.34.6). (BZ#1985042)

Security Fix(es):

• webkitgtk: maliciously crafted web content may lead to arbitrary code execution due to use after free (CVE-2022-22620)

• webkitgtk: Use-after-free leading to arbitrary code execution (CVE-2021-30809)

• webkitgtk: Type confusion issue leading to arbitrary code execution (CVE-2021-30818)

• webkitgtk: Logic issue leading to HSTS bypass (CVE-2021-30823)

• webkitgtk: Memory corruption issue leading to arbitrary code execution (CVE-2021-30846)

• webkitgtk: Memory corruption issue leading to arbitrary code execution (CVE-2021-30848)

• webkitgtk: Multiple memory corruption issue leading to arbitrary code execution (CVE-2021-30849)

• webkitgtk: Memory corruption issue leading to arbitrary code execution (CVE-2021-30851)

• webkitgtk: Logic issue leading to Content Security Policy bypass (CVE-2021-30887)

• webkitgtk: Information leak via Content Security Policy reports (CVE-2021-30888)

• webkitgtk: Buffer overflow leading to arbitrary code execution (CVE-2021-30889)

• webkitgtk: Logic issue leading to universal cross-site scripting (CVE-2021-30890)

• webkitgtk: Cross-origin data exfiltration via resource timing API (CVE-2021-30897)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30934)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30936)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30951)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30952)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30953)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30954)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2021-30984)

• webkitgtk: Incorrect memory allocation in WebCore::ImageBufferCairoImageSurfaceBackend::create (CVE-2021-45481)

• webkitgtk: use-after-free in WebCore::ContainerNode::firstChild (CVE-2021-45482)

• webkitgtk: use-after-free in WebCore::Frame::page (CVE-2021-45483)

• webkitgtk: Processing a maliciously crafted mail message may lead to running arbitrary javascript (CVE-2022-22589)

• webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution (CVE-2022-22590)

• webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being enforced (CVE-2022-22592)

• webkitgtk: A malicious website may exfiltrate data cross-origin (CVE-2022-22594)

• webkitgtk: logic issue was addressed with improved state management (CVE-2022-22637)

• webkitgtk: Out-of-bounds read leading to memory disclosure (CVE-2021-30836)

• webkitgtk: CSS compositing issue leading to revealing of the browsing history (CVE-2021-30884)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.