Vulnerability in Flatpak
CVE-2017-9780
In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate permissions, for example setuid or world-writable. The files are deployed with those permissions, which would let a local attacker run the setuid executable or write to the world-writable location. In the case of the "system helper" component, files deployed as part of the app are owned by root, so in the worst case they could be setuid root.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (26.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Flatpak
- Debian Linux — versions 9.0
Weakness classification (CWE)
References
- github.com/flatpak/flatpak/issues/845 (Patch, Third Party Advisory, Issue Tracking)
- bugs.debian.org/865413 (Patch, Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/99346 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2017/dsa-3895 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-9780?
- CVE-2017-9780 is a high-severity vulnerability in Flatpak, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2017-06-21.
- How severe is CVE-2017-9780?
- High severity. CVSS v3 base score is 7.8 out of 10.