CVE-2023-32439

high KEV

Published 2023-07-18 · Modified 2023-06-23

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

9.5

Description

Apple iOS, iPadOS, macOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

CISA KEV

Vendor: Apple
Product: Multiple Products
Due date: 2023-07-14

Predictions

Exploit likelihood

99%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2023-32439 NameCVE-2023-32439 DescriptionA type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited. SourceCVE (at…

CVE-2023-32439

Name	CVE-2023-32439
Description	A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-5449-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
webkit2gtk (PTS)	bullseye	2.44.2-1~deb11u1	fixed
	bullseye (security)	2.50.6-1~deb11u1	fixed
	bookworm, bookworm (security)	2.50.6-1~deb12u1	fixed
	trixie (security), trixie	2.52.3-2~deb13u1	fixed
	forky, sid	2.52.3-2	fixed
wpewebkit (PTS)	bullseye (security), bullseye	2.38.6-1~deb11u1	vulnerable
	bookworm	2.38.6-1	vulnerable
	trixie	2.48.3-1	fixed
	forky	2.52.3-1	fixed
	sid	2.52.4-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin
webkit2gtk	source	buster	(unfixed)	end-of-life
webkit2gtk	source	bullseye	2.40.3-2~deb11u1		DSA-5449-1
webkit2gtk	source	bookworm	2.40.3-2~deb12u1		DSA-5449-1
webkit2gtk	source	(unstable)	2.40.3-1
wpewebkit	source	(unstable)	2.40.3-1

Notes

[buster] - webkit2gtk <end-of-life> (webkit2gtk EOL in buster)
[bookworm] - wpewebkit <ignored> (wpewebkit not covered by security support in Bookworm)
[bullseye] - wpewebkit <ignored> (wpewebkit >= 2.40 can no longer be sensibly backported)
https://webkitgtk.org/security/WSA-2023-0005.html

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[buster] - webkit2gtk <end-of-life> (webkit2gtk EOL in buster)[bookworm] - wpewebkit <ignored> (wpewebkit not covered by security support in Bookworm)[bullseye] - wpewebkit <ignored> (wpewebkit >= 2.40 can no longer be sensibly backported)https://webkitgtk.org/security/WSA-2023-0005.html

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.40.3-1`
sid	Fixed	`2.40.3-1`
forky	Fixed	`2.40.3-1`
bullseye	Fixed	`2.40.3-2~deb11u1`
bookworm	Fixed	`2.40.3-2~deb12u1`

Red Hat Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

Rocky Linux Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.