RHSA-2023:2834 — Security Advisory

An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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

Security Fix(es):

• webkitgtk: use-after-free issue leading to arbitrary code execution (CVE-2022-42826)

• webkitgtk: memory corruption issue leading to arbitrary code execution (CVE-2023-23517)

• webkitgtk: memory corruption issue leading to arbitrary code execution (CVE-2023-23518)

• webkitgtk: buffer overflow issue was addressed with improved memory handling (CVE-2022-32886)

• webkitgtk: out-of-bounds write issue was addressed with improved bounds checking (CVE-2022-32888)

• webkitgtk: correctness issue in the JIT was addressed with improved checks (CVE-2022-32923)

• webkitgtk: issue was addressed with improved UI handling (CVE-2022-42799)

• webkitgtk: type confusion issue leading to arbitrary code execution (CVE-2022-42823)

• webkitgtk: sensitive information disclosure issue (CVE-2022-42824)

• webkitgtk: memory disclosure issue was addressed with improved memory handling (CVE-2022-42852)

• webkitgtk: memory corruption issue leading to arbitrary code execution (CVE-2022-42863)

• webkitgtk: use-after-free issue leading to arbitrary code execution (CVE-2022-42867)

• webkitgtk: memory corruption issue leading to arbitrary code execution (CVE-2022-46691)

• webkitgtk: Same Origin Policy bypass issue (CVE-2022-46692)

• webkitgtk: logic issue leading to user information disclosure (CVE-2022-46698)

• webkitgtk: memory corruption issue leading to arbitrary code execution (CVE-2022-46699)

• webkitgtk: memory corruption issue leading to arbitrary code execution (CVE-2022-46700)

• webkitgtk: heap-use-after-free in WebCore::RenderLayer::addChild() (CVE-2023-25358)

• webkitgtk: heap-use-after-free in WebCore::RenderLayer::renderer() (CVE-2023-25360)

• webkitgtk: heap-use-after-free in WebCore::RenderLayer::setNextSibling() (CVE-2023-25361)

• webkitgtk: heap-use-after-free in WebCore::RenderLayer::repaintBlockSelectionGaps() (CVE-2023-25362)

• webkitgtk: heap-use-after-free in WebCore::RenderLayer::updateDescendantDependentFlags() (CVE-2023-25363)

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 8.8 Release Notes linked from the References section.