CVE-2021-21131

critical

Published — · Modified —

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CVSS v3

—

CVSS v4 NEW

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not yet in upstream

VIR risk

9.5

Description

Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2021-21131 NameCVE-2021-21131 DescriptionInsufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)…

CVE-2021-21131

Name	CVE-2021-21131
Description	Insufficient policy enforcement in File System API in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
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-4846-1
Debian Bugs	980564

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
chromium (PTS)	bullseye (security), bullseye	120.0.6099.224-1~deb11u1	fixed
	bookworm	147.0.7727.137-1~deb12u1	fixed
	bookworm (security)	148.0.7778.178-1~deb12u1	fixed
	trixie	147.0.7727.137-1~deb13u1	fixed
	trixie (security)	148.0.7778.178-1~deb13u1	fixed
	forky	148.0.7778.178-1	fixed
	sid	148.0.7778.215-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
chromium	source	stretch	(unfixed)	end-of-life
chromium	source	buster	88.0.4324.146-1~deb10u1		DSA-4846-1
chromium	source	(unstable)	88.0.4324.96-0.1			980564

Notes

[stretch] - chromium <end-of-life> (see DSA 4562)

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[stretch] - chromium <end-of-life> (see DSA 4562)

OS impact

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`3.6.2165.36-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`88.0.4324.96-0.1`
sid	Fixed	`88.0.4324.96-0.1`
forky	Fixed	`88.0.4324.96-0.1`
bullseye	Fixed	`88.0.4324.96-0.1`
bookworm	Fixed	`88.0.4324.96-0.1`

References

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

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