Multiple vulnerabilities in Mozilla Firefox and Firefox ESR
| 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 |
Mozilla Firefox Client/Desktop applications / Web browsers Firefox ESR Client/Desktop applications / Web browsers |
| Vendor | Mozilla |
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
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMozilla Firefox: 116.0 - 124.0
External linkshttp://www.mozilla.org/en-US/security/advisories/mfsa2024-15/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Code Injection
EUVDB-ID: #VU87736
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-2024-29944
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Vulnerable software versionsMozilla Firefox: 100.0 - 124.0
Firefox ESR: 102.0 - 115.9.0
External linkshttp://www.mozilla.org/en-US/security/advisories/mfsa2024-15/
http://www.mozilla.org/en-US/security/advisories/mfsa2024-16/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
