Buffer overflow in firefox-esr (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-23960
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
 firefox-esr (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU50024

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-2021-23960

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when performing garbage collection on re-declared JavaScript variables. A remote attacker can create a specially crafted web page, trick the victim into opening it and execute arbitrary code on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox-esr (Alpine package): 60.4.0-r0 - 78.6.1-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=3bfe2035546b511130bb1e0f6aee1a9de86814d9
https://git.alpinelinux.org/aports/commit/?id=b9fc2ab51a39e4be2d498849fd6c81c823d08642


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.



###SIDEBAR###