Heap-based buffer overflow in firefox (Alpine package)



Published: 2019-10-24 | Updated: 2021-07-01
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-6156
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
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firefox (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) Heap-based buffer overflow

EUVDB-ID: #VU14035

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-6156

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The weakness exists due to heap-based buffer overflow in WebRTC when handling malicious input. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox (Alpine package): 60.0.1-r0 - 71.0-r1

External links

http://git.alpinelinux.org/aports/commit/?id=af0d1d1edd77beb85efb9bbf0ad15000eb319170
http://git.alpinelinux.org/aports/commit/?id=795c32179f1238f33dd64c4fab4a8e94d9017368


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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