Improper Certificate Validation in mozjs68 (Alpine package)

Published: 2020-07-01

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2020-12421
CWE-ID	CWE-295
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	mozjs68 (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) Improper Certificate Validation

EUVDB-ID: #VU29457

Risk: Low

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

CVE-ID: CVE-2020-12421

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to disable installed Add-Ons.

The vulnerability exists due to Add-On updates do not respect the same certificate trust rules as software updates. When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user.

Mitigation

Install update from vendor's website.

Vulnerable software versions

mozjs68 (Alpine package): 68.9.0-r0

CPE2.3

cpe:2.3:a:alpine:mozjs68_alpine_package:68.9.0-r0:*:*:*:*:alpine_linux:*:3.11

External links

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.