SB2022011715 - Privilege escalation in Flatpak
Published: January 17, 2022 Updated: February 3, 2022
Security Bulletin ID
SB2022011715
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
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-2021-43860)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly validate that the permissions displayed to the user for an app at install time match the actual permissions granted to the app at runtime, which leads to security restrictions bypass and privilege escalation.
Remediation
Install update from vendor's website.
References
- https://github.com/flatpak/flatpak/commit/d9a8f9d8ccc0b7c1135d0ecde006a75d25f66aee
- https://github.com/flatpak/flatpak/commit/65cbfac982cb1c83993a9e19aa424daee8e9f042
- https://github.com/flatpak/flatpak/commit/93357d357119093804df05acc32ff335839c6451
- https://github.com/flatpak/flatpak/commit/ba818f504c926baaf6e362be8159cfacf994310e
- https://github.com/flatpak/flatpak/security/advisories/GHSA-qpjc-vq3c-572j
- https://github.com/flatpak/flatpak/commit/54ec1a482dfc668127eaae57f135e6a8e0bc52da
- https://github.com/flatpak/flatpak/releases/tag/1.12.3
- https://github.com/flatpak/flatpak/releases/tag/1.10.6
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/
- https://github.com/flatpak/flatpak/releases/tag/1.8.7