CVE-2023-37209

Published: 5 July 2023

A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

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

8.8

Score breakdown

Status

Package	Release	Status
firefox Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	jammy	Not vulnerable (code not present)
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Not vulnerable (code not present)
	upstream	Released (115.0-1)
	focal	Released (115.0+build2-0ubuntu0.20.04.3)
thunderbird Launchpad, Ubuntu, Debian	trusty	Ignored (end of standard support)
	xenial	Ignored (end of standard support)
	bionic	Ignored (end of standard support)
	focal	Not vulnerable
	jammy	Not vulnerable
	kinetic	Ignored (end of life, was needed)
	lunar	Not vulnerable
	upstream	Needs triage

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

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