Vulnerability in Flatpak
CVE-2023-28101
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME Software rather than the command-line interface, or only install apps whose maintainers you trust.
EPSS: 0.009 (55.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N.
Affected products
- Flatpak — versions < 1.10.8, >= 1.12.0, < 1.12.8, >= 1.14.0, < 1.14.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-28101?
- CVE-2023-28101 is a medium-severity vulnerability in Flatpak, classified under Improper Encoding or Escaping of Output. CVSS score: 5.0/10. Published 2023-03-16.
- How severe is CVE-2023-28101?
- Medium severity. CVSS v3 base score is 5.0 out of 10.
- Is CVE-2023-28101 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.