Ubuntu update for firefox

Published: 2024-03-25

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-29943 CVE-2024-29944
CWE-ID	CWE-787 CWE-94
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system firefox (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU87735

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-29943

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to an error during range-based bounds check elimination when processing JavaScript objects. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package firefox to the latest version.

Vulnerable software versions

Ubuntu: 20.04

firefox (Ubuntu package): before 124.0.1+build1-0ubuntu0.20.04.1

External links

http://ubuntu.com/security/notices/USN-6710-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Code Injection

EUVDB-ID: #VU87736