Multiple vulnerabilities in flatpak
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU73834
Risk: Medium
CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-28101
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to insufficient validation of user-supplied input when displaying permissions and metadata. A remote attacker can create a specially crafted app that manipulates the appearance of the permissions list through metadata, convincing the user into granting to the app more permissions than agreed by the user.
Install updates from vendor's website.
Vulnerable software versionsFlatpak: 0.1 - 1.15.3
CPE2.3- cpe:2.3:a:flatpak:flatpak:0.99.3:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.15.3:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.7.3:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.8.7:*:*:*:*:*:*:*
https://github.com/flatpak/flatpak/commit/6cac99dafe6003c8a4bd5666341c217876536869
https://github.com/flatpak/flatpak/commit/7fe63f2e8f1fd2dafc31d45154cf0b191ebec66c
https://github.com/flatpak/flatpak/commit/409e34187de2b2b2c4ef34c79f417be698830f6c
https://github.com/flatpak/flatpak/security/advisories/GHSA-h43h-fwqx-mpp8
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) Input validation error
EUVDB-ID: #VU73835
Risk: Low
CVSSv4.0: 3.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-28100
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a malicious application to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input when handling copy/paste operations. If a Flatpak app is run on a Linux virtual console such as `/dev/tty1`, it can copy text from the virtual console and paste it into the command buffer, from which the command might be run after the Flatpak app has exited.
MitigationInstall updates from vendor's website.
Vulnerable software versionsFlatpak: 0.1 - 1.15.3
CPE2.3 External linkshttps://github.com/flatpak/flatpak/security/advisories/GHSA-7qpw-3vjv-xrqp
https://github.com/flatpak/flatpak/commit/8e63de9a7d3124f91140fc74f8ca9ed73ed53be9
https://marc.info/?l=oss-security&m=167879021709955&w=2
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
