Permissions, Privileges, and Access Controls in firefox-esr (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-18505
CWE-ID CWE-264
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 low risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU17263

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-18505

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass imposed sandbox restrictions.

The vulnerability exists within implementation of authentication process for Inter-process Communication (IPC). This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. A remote attacker can bypass sandbox restrictions through IPC channels due to lack of message validation in the listener process.

Mitigation

Install update from vendor's website.

Vulnerable software versions

firefox-esr (Alpine package): 60.4.0-r1 - 60.4.0-r2

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=9d0c4a60607987132bbda75257475a7542c35759
https://git.alpinelinux.org/aports/commit/?id=50d6c8f738e21e88d0ebbdf4007cde60d258d012


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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