CVE-2018-4089

Description

An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is affected. tvOS before 11.2.5 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗

Release	Package	Fixed in	Advisory
Debian 14	webkit2gtk	2.18.6-1	—
Debian 13	webkit2gtk	2.18.6-1	—
Debian 12	webkit2gtk	2.18.6-1	—

Ubuntu

Security tracker ↗

Release	Package	Fixed in	Advisory
Ubuntu 24.04 LTS	qtwebkit-opensource-src	No fix yet	—
Ubuntu 22.04 LTS	qtwebkit-opensource-src	No fix yet	—
Ubuntu 20.04 LTS	qtwebkit-opensource-src	No fix yet	—
Ubuntu 18.04 LTS	webkit2gtk	2.18.4-1	—
Ubuntu 18.04 LTS	webkitgtk +2	No fix yet	—
Ubuntu 16.04 LTS	webkit2gtk	2.18.4-0ubuntu0.16.04.1	—
Ubuntu 16.04 LTS	webkitgtk +2	No fix yet	—

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

WebKit - 'detachWrapper' Use-After-Free EDB-43937 · dos · Feb 1, 2018 · verified

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is…