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Vulnerability · Published Sep 26, 2023 · Assigned by apple

CVE-2023-39434

High 8.8

In plain English

A high-severity use-after-free in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.7%top 23.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8webkit2gtk32.40.5-1.el8ALSA-2023:7055
AlmaLinux:9webkit2gtk32.40.5-1.el9ALSA-2023:6535
AlmaLinux:8webkit2gtk3-devel2.40.5-1.el8ALSA-2023:7055
AlmaLinux:9webkit2gtk3-devel2.40.5-1.el9ALSA-2023:6535
AlmaLinux:8webkit2gtk3-jsc2.40.5-1.el8ALSA-2023:7055
AlmaLinux:9webkit2gtk3-jsc2.40.5-1.el9ALSA-2023:6535
AlmaLinux:8webkit2gtk3-jsc-devel2.40.5-1.el8ALSA-2023:7055
AlmaLinux:9webkit2gtk3-jsc-devel2.40.5-1.el9ALSA-2023:6535
Debian:12webkit2gtk2.40.5-1~deb12u1DEBIAN-CVE-2023-39434
Debian:12webkit2gtk2.40.5-1~deb12u1DSA-5468-1
Debian:13webkit2gtk2.40.5-1DEBIAN-CVE-2023-39434
Debian:14webkit2gtk2.40.5-1DEBIAN-CVE-2023-39434
Debian:12wpewebkitno fix listedDEBIAN-CVE-2023-39434
Debian:13wpewebkit2.40.5-1DEBIAN-CVE-2023-39434
Debian:14wpewebkit2.40.5-1DEBIAN-CVE-2023-39434
Ubuntu:22.04:LTSqtwebkit-opensource-srcno fix listedUBUNTU-CVE-2023-39434
Ubuntu:24.04:LTSqtwebkit-opensource-srcno fix listedUBUNTU-CVE-2023-39434
Ubuntu:22.04:LTSwebkit2gtk2.40.5-0ubuntu0.22.04.1UBUNTU-CVE-2023-39434
Ubuntu:22.04:LTSwpewebkitno fix listedUBUNTU-CVE-2023-39434

Affected products (as reported)

VendorProductVersions
Apple iOS and iPadOS unspecified – before 17
Apple macOS unspecified – before 14
Apple watchOS unspecified – before 10

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References