CVE-2023-5732

Publication date 25 October 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
thunderbird	24.04 LTS noble	Fixed 1:115.4.1+build1-0ubuntu1
	23.10 mantic	Fixed 1:115.4.1+build1-0ubuntu0.23.10.1
	23.04 lunar	Fixed 1:115.4.1+build1-0ubuntu0.23.04.1
	22.04 LTS jammy	Fixed 1:115.4.1+build1-0ubuntu0.22.04.1
	20.04 LTS focal	Fixed 1:115.4.1+build1-0ubuntu0.20.04.1
	18.04 LTS bionic	Ignored end of standard support
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

Severity score breakdown

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

References

Related Ubuntu Security Notices (USN)

USN-6468-1
Thunderbird vulnerabilities
2 November 2023