Use-after-free in webkit2gtk3 (Red Hat package) - CVE-2023-2203

Vulnerability identifier: #VU75918

CSH Severity: Critical

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-2203

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a missing fix for a critical risk vulnerability in WebKit  #VU74604 (CVE-2023-28205). A remote attacker can trick the victim to open a specially crafted website, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

webkit2gtk3 (Red Hat package)
webkit2gtk3
webkit2gtk3-devel
webkit2gtk3-jsc
webkit2gtk3-jsc-devel
Oracle Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS

Install updates from vendor's website.

webkit2gtk3 (Red Hat package) - addressed in versions 2.38.5-1.el9_2.1, 2.38.5-1.el8_8.3
webkit2gtk3 - update to 2.38.5-1.0.1
webkit2gtk3-devel - update to 2.38.5-1.0.1
webkit2gtk3-jsc - update to 2.38.5-1.0.1
webkit2gtk3-jsc-devel - update to 2.38.5-1.0.1

• https://bugzilla.redhat.com/show_bug.cgi?id=2188543

• Red Hat Enterprise Linux 9 update for webkit2gtk3
• Red Hat Enterprise Linux 8 update for webkit2gtk3
• Multiple vulnerabilities in Oracle Linux
• Anolis OS update for webkit2gtk3