CVE-2023-39928

Publication date 28 September 2023

Last updated 26 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

A use-after-free vulnerability exists in the MediaRecorder API of Webkit WebKitGTK 2.40.5. A specially crafted web page can abuse this vulnerability to cause memory corruption and potentially arbitrary code execution. A user would need to to visit a malicious webpage to trigger this vulnerability.

Read the notes from the security team

Status

Package Ubuntu Release Status
qtwebkit-opensource-src 24.04 LTS noble Ignored
23.10 mantic Ignored
23.04 lunar Ignored end of life, was needs-triage
22.04 LTS jammy Ignored
20.04 LTS focal Ignored
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
qtwebkit-source 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
webkit2gtk 24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Fixed 2.42.1-0ubuntu0.23.04.1
22.04 LTS jammy
Fixed 2.42.1-0ubuntu0.22.04.1
20.04 LTS focal Ignored
18.04 LTS bionic Ignored end of standard support, was deferred
16.04 LTS xenial Ignored end of standard support, was deferred
14.04 LTS trusty Not in release
webkitgtk 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support
wpewebkit 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Ignored
18.04 LTS bionic Ignored end of standard support
16.04 LTS xenial Ignored end of standard support
14.04 LTS trusty Ignored end of standard support

Notes

jdstrand

webkit receives limited support. For details, see https://wiki.ubuntu.com/SecurityTeam/FAQ#webkit webkit in Ubuntu uses the JavaScriptCore (JSC) engine, not V8

mdeslaur

It is no longer possible to build new webkit2gtk versions on focal and earlier. Marking as ignored.

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.8 · High

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

References

Related Ubuntu Security Notices (USN)

    • USN-6426-1
    • WebKitGTK vulnerabilities
    • 10 October 2023

Other references

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