SB2020050532 - Permissions, Privileges, and Access Controls in firefox-esr (Alpine package)
Published: May 5, 2020
Security Bulletin ID
SB2020050532
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-12388)
The vulnerability allows a remote attacker to bypass sandbox restrictions.
The vulnerability exists due the Firefox content processes did not sufficiently lockdown access control due to improper protection of access tokens. A remote attacker can bypass implemented security restrictions and execute arbitrary code on the target system.
Note, this vulnerability affects Windows versions only.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=37e37d549603b29c55fafcde8f3732cfb9db1640
- https://git.alpinelinux.org/aports/commit/?id=5d9ca1b5fa041ac0d09e2bd2038f505e06c7d7f5
- https://git.alpinelinux.org/aports/commit/?id=397c40a2e03948882e67f7fb7053d46e6dda50d3
- https://git.alpinelinux.org/aports/commit/?id=4b76c8208fa0c29e289d14baf509b417f7c96a08
- https://git.alpinelinux.org/aports/commit/?id=c9413fd0912a1f1e6cdc9e5fd25d15f4f22cc11a
- https://git.alpinelinux.org/aports/commit/?id=1aeb9d76f321c652de13c181f2775af18eb8c42d