Fedora 34 update for flatpak
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-43860 CVE-2022-21682 |
| CWE-ID | CWE-264 CWE-22 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Fedora Operating systems & Components / Operating system flatpak Operating systems & Components / Operating system package or component |
| Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU59654
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-43860
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 34
flatpak: before 1.10.6-1.fc34
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2022-f28d52fc17
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.
2) Path traversal
EUVDB-ID: #VU59689
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-21682
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when flatpak-builder applies "finish-args" last in the build. A remote authenticated attacker can send a specially crafted HTTP request and create arbitrary files on the system.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 34
flatpak: before 1.10.6-1.fc34
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2022-f28d52fc17
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
