Multiple vulnerabilities in flatpak
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-10063 CVE-2017-5226 |
| CWE-ID | CWE-254 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Flatpak Server applications / Frameworks for developing and running applications |
| Vendor | Flatpak |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Security features bypass
EUVDB-ID: #VU32022
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-10063
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a malicious application to bypass implemented security restrictions.
The vulnerability exists due to improper input validation. If Flatpak runs from a terminal emulator containing an interactive
shell, a malicious Flatpak app could inject input into the interactive
shell by using the TIOCSTI ioctl.
Install update from vendor's website.
Vulnerable software versionsFlatpak: 1.0.0 - 1.2.3
External linkshttp://access.redhat.com/errata/RHSA-2019:1024
http://access.redhat.com/errata/RHSA-2019:1143
http://github.com/flatpak/flatpak/issues/2782
http://github.com/flatpak/flatpak/security/advisories/GHSA-7gfv-rvfx-h87x
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.
2) Input validation error
EUVDB-ID: #VU73856
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-5226
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input. The non-privileged session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing an attacker to escape the sandbox.
MitigationInstall updates from vendor's website.
Vulnerable software versionsFlatpak: 1.0.0 - 1.3.0
External linkshttp://github.com/flatpak/flatpak/security/advisories/GHSA-7gfv-rvfx-h87x
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.
