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CVE-2023-32435

webkitgtk: memory corruption issue leading to arbitrary code execution

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Severity

Important

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · June 29, 2023

Updated · November 1, 2026

Description

A vulnerability was found in webkitgtk. This issue occurs when processing web content, which may lead to arbitrary code execution.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

This vulnerability can be mitigated by setting the environment variable JSC_useWebAssembly=0, which will disable support for WebAssembly. It's not necessary to set this environment variable if you're already using JavaScriptCoreUseJIT=0 to mitigate other CVEs because WebAssembly depends on JIT.

CVSS / CWE

CVSS 3.1 · 8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-94 · Improper Control of Generation of Code