CVE-2022-31742

Published: 1 June 2022

An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Notes

Author	Note
tyhicks	mozjs contains a copy of the SpiderMonkey JavaScript engine
mdeslaur	starting with Ubuntu 22.04, the firefox package is just a script that installs the Firefox snap

Priority

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package	Release	Status
firefox Launchpad, Ubuntu, Debian	bionic	Released (101.0.1+build1-0ubuntu0.18.04.1)
	focal	Released (101.0.1+build1-0ubuntu0.20.04.1)
	impish	Released (101.0.1+build1-0ubuntu0.21.10.1)
	jammy	Not vulnerable (code not present)
	kinetic	Not vulnerable (code not present)
	lunar	Not vulnerable (code not present)
	mantic	Not vulnerable (code not present)
	noble	Not vulnerable (code not present)
	trusty	Does not exist
	upstream	Released (101)
	xenial	Ignored (end of standard support)
firefox-esr Launchpad, Ubuntu, Debian	upstream	Released (91.10.0esr-1)
mozjs38 Launchpad, Ubuntu, Debian	bionic	Ignored
	focal	Does not exist
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	noble	Does not exist
	trusty	Does not exist
	upstream	Ignored
	xenial	Does not exist
mozjs52 Launchpad, Ubuntu, Debian	bionic	Ignored
	focal	Ignored
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	noble	Does not exist
	trusty	Does not exist
	upstream	Ignored
	xenial	Does not exist
mozjs68 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored
	impish	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	noble	Does not exist
	trusty	Does not exist
	upstream	Ignored
	xenial	Does not exist
mozjs78 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Ignored (end of life)
	jammy	Ignored
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Ignored (end of life, was needs-triage)
	mantic	Does not exist
	noble	Does not exist
	trusty	Does not exist
	upstream	Ignored
	xenial	Does not exist
mozjs91 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Ignored
	kinetic	Does not exist
	lunar	Does not exist
	mantic	Does not exist
	noble	Does not exist
	trusty	Does not exist
	upstream	Ignored
	xenial	Does not exist
thunderbird Launchpad, Ubuntu, Debian	bionic	Released (1:91.11.0+build2-0ubuntu0.18.04.1)
	focal	Released (1:91.11.0+build2-0ubuntu0.20.04.1)
	impish	Released (1:91.11.0+build2-0ubuntu0.21.10.1)
	jammy	Released (1:91.11.0+build2-0ubuntu0.22.04.1)
	kinetic	Released (1:91.10.0+build1-0ubuntu1)
	lunar	Released (1:91.10.0+build1-0ubuntu1)
	mantic	Released (1:91.10.0+build1-0ubuntu1)
	noble	Released (1:91.10.0+build1-0ubuntu1)
	trusty	Does not exist
	upstream	Released (91.10)
	xenial	Ignored (end of standard support)

Severity score breakdown

Parameter	Value
Base score	6.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

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