Gentoo update for Mozilla Firefox



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 Public exploit code for vulnerability #1 is available.
Vulnerable software
 Gentoo Linux
Operating systems & Components / Operating system

www-client/firefox
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU87735

Risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2024-29943

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

Exploit availability: Yes

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 packages.
www-client/firefox to version:
www-client/firefox-bin to version:

Vulnerable software versions

Gentoo Linux: All versions

www-client/firefox: before 104

CPE2.3 External links

https://security.gentoo.org/glsa/202407-22


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. However, proof of concept for this vulnerability is available.

2) Code Injection

EUVDB-ID: #VU87736

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-29944

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote attacker can send trick the victim to visit a specially crafted website, inject an event handler into a privileged object and execute arbitrary JavaScript on the system within the parent process.

Successful exploitation of the vulnerability may allow remote code execution.

Mitigation

Update the affected packages.
www-client/firefox to version:
www-client/firefox-bin to version:

Vulnerable software versions

Gentoo Linux: All versions

www-client/firefox: before 104

CPE2.3 External links

https://security.gentoo.org/glsa/202407-22


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.



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