CVE-2021-23998

high

Published 2021-04-26 · Modified 2021-04-26

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CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.0

Description

Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2021-23998 NameCVE-2021-23998 DescriptionThrough complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues,…

CVE-2021-23998

Name	CVE-2021-23998
Description	Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
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	DLA-2632-1, DLA-2633-1, DSA-4895-1, DSA-4897-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
firefox (PTS)	sid	151.0.3-1	fixed
firefox-esr (PTS)	bullseye	115.14.0esr-1~deb11u1	fixed
	bullseye (security)	140.11.0esr-1~deb11u1	fixed
	bookworm	140.10.2esr-1~deb12u1	fixed
	bookworm (security)	140.11.0esr-1~deb12u1	fixed
	trixie	140.10.2esr-1~deb13u1	fixed
	trixie (security)	140.11.0esr-1~deb13u1	fixed
	forky, sid	140.11.0esr-1	fixed
thunderbird (PTS)	bullseye	1:115.12.0-1~deb11u1	fixed
	bullseye (security)	1:140.11.0esr-1~deb11u1	fixed
	bookworm	1:140.10.1esr-1~deb12u1	fixed
	bookworm (security)	1:140.11.0esr-1~deb12u1	fixed
	trixie	1:140.10.1esr-1~deb13u1	fixed
	trixie (security)	1:140.11.0esr-1~deb13u1	fixed
	forky, sid	1:140.11.0esr-1	fixed

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

Package	Type	Release	Fixed Version	Origin
firefox	source	(unstable)	88.0-1
firefox-esr	source	stretch	78.10.0esr-1~deb9u1	DLA-2633-1
firefox-esr	source	buster	78.10.0esr-1~deb10u1	DSA-4895-1
firefox-esr	source	(unstable)	78.10.0esr-1
thunderbird	source	stretch	1:78.10.0-1~deb9u1	DLA-2632-1
thunderbird	source	buster	1:78.10.0-1~deb10u1	DSA-4897-1
thunderbird	source	(unstable)	1:78.10.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/#CVE-2021-23998
https://www.mozilla.org/en-US/security/advisories/mfsa2021-15/#CVE-2021-23998
https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/#CVE-2021-23998

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/#CVE-2021-23998https://www.mozilla.org/en-US/security/advisories/mfsa2021-15/#CVE-2021-23998https://www.mozilla.org/en-US/security/advisories/mfsa2021-16/#CVE-2021-23998

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`78.10.0-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`78.10.0esr-1`
sid	Fixed	`88.0-1`
forky	Fixed	`78.10.0esr-1`
bullseye	Fixed	`78.10.0esr-1`
bookworm	Fixed	`78.10.0esr-1`

Red Hat Fixed 1 release

Version	Status	Fixed in
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.