SB2022082314 - Arbitrary file deletion in flatpak
Published: August 23, 2022
Security Bulletin ID
SB2022082314
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: N/A)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to delete arbitrary files on the system.
The vulnerability exists due to usage of an old version of libostree, which lacks filtration of ref (branch) names. A local user can force the latpak-system-helper service to delete arbitrary files by requesting deletion of a crafted ref (branch) name.
Remediation
Install update from vendor's website.