CVE-2023-4863

Published: 12 September 2023

Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

Notes

Author	Note
alexmurray	The Debian chromium source package is called chromium-browser in Ubuntu
mdeslaur	starting with Ubuntu 19.10, the chromium-browser package is just a script that installs the Chromium snap

Priority

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package	Release	Status
chromium-browser Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	focal	Not vulnerable (code not present)
	jammy	Not vulnerable (code not present)
	lunar	Not vulnerable (code not present)
	upstream	Released
libwebp Launchpad, Ubuntu, Debian	trusty	Needs triage
	xenial	Needs triage
	bionic	Released (0.6.1-2ubuntu0.18.04.2+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	focal	Released (0.6.1-2ubuntu0.20.04.3)
	jammy	Released (1.2.2-2ubuntu0.22.04.2)
	lunar	Released (1.2.4-0.1ubuntu0.23.04.2)
	upstream	Needs triage
	Patches: upstream: https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a (main) upstream: https://github.com/webmproject/libwebp/commit/8bacd63a6de1cc091f85a1692390401e7bbf55ac (1.2.4) upstream: https://github.com/webmproject/libwebp/commit/801d2be12dba966233c21f850490203eb1acf014 (1.2.2)
firefox Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	focal	Released (117.0.1+build2-0ubuntu0.20.04.1)
	jammy	Not vulnerable (code not present)
	lunar	Not vulnerable (code not present)
	upstream	Released (117.0.1)
thunderbird Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	focal	Released (1:102.15.1+build1-0ubuntu0.20.04.1)
	jammy	Released (1:102.15.1+build1-0ubuntu0.22.04.1)
	lunar	Released (1:102.15.1+build1-0ubuntu0.23.04.1)
	upstream	Released (115.2.2)

Severity score breakdown

Parameter	Value
Base score	8.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Bugs

https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/2035220

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