CVE-2024-32462

HIGH EPSS 39.7%
Published Apr 18, 20242y ago · Modified Jun 17, 20262w ago
8.4 CVSS 3.1
High
Find Similar
Published Apr 18, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

Description

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. in versions before 1.10.9, 1.12.9, 1.14.6, and 1.15.8, a malicious or compromised Flatpak app could execute arbitrary code outside its sandbox. Normally, the `--command` argument of `flatpak run` expects to be given a command to run in the specified Flatpak app, optionally along with some arguments. However it is possible to instead pass `bwrap` arguments to `--command=`, such as `--bind`. It's possible to pass an arbitrary `commandline` to the portal interface `org.freedesktop.portal.Background.RequestBackground` from within a Flatpak app. When this is converted into a `--command` and arguments, it achieves the same effect of passing arguments directly to `bwrap`, and thus can be used for a sandbox escape. The solution is to pass the `--` argument to `bwrap`, which makes it stop processing options. This has been supported since bubblewrap 0.3.0. All supported versions of Flatpak require at least that version of bubblewrap. xdg-desktop-portal version 1.18.4 will mitigate this vulnerability by only allowing Flatpak apps to create .desktop files for commands that do not start with --. The vulnerability is patched in 1.15.8, 1.10.9, 1.12.9, and 1.14.6.

CVSS Details

Base Score
8.4
Exploitability
2.0
Impact
5.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
39.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-88

Affected Products 6

VendorProductVersionRange
flatpakflatpak* <1.10.9
flatpakflatpak*≥1.12.0  –  <1.12.9
flatpakflatpak*≥1.14.0  –  <1.14.6
flatpakflatpak*≥1.15.0  –  <1.15.8
fedoraprojectfedora39any
fedoraprojectfedora40any

References 8

  • openwall.com http://www.openwall.com/lists/oss-security/2024/04/18/5
    Mailing ListThird Party Advisory
  • github.com https://github.com/flatpak/flatpak/commit/72016e3fce8fcbeab707daf4f1a02b931fcc004d
    Patch
  • github.com https://github.com/flatpak/flatpak/commit/81abe2a37d363f5099c3d0bdcd0caad6efc5bf97
    Patch
  • github.com https://github.com/flatpak/flatpak/commit/b7c1a558e58aaeb1d007d29529bbb270dc4ff11e
    Patch
  • github.com https://github.com/flatpak/flatpak/commit/bbab7ed1e672356d1a78b422462b210e8e875931
    Patch
  • github.com https://github.com/flatpak/flatpak/security/advisories/GHSA-phv6-cpc2-2fgj
    Vendor Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IB6VQAF5S2YOBULDHPUKPOEIKONOP5KO/
    Mailing List
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZFNSCFJVMAQK5AF55JBN7OSJP3CREDBD/
    Mailing List

Remediation

  • github.com https://github.com/flatpak/flatpak/commit/72016e3fce8fcbeab707daf4f1a02b931fcc004d
    Patch
  • github.com https://github.com/flatpak/flatpak/commit/81abe2a37d363f5099c3d0bdcd0caad6efc5bf97
    Patch
  • github.com https://github.com/flatpak/flatpak/commit/b7c1a558e58aaeb1d007d29529bbb270dc4ff11e
    Patch
  • github.com https://github.com/flatpak/flatpak/commit/bbab7ed1e672356d1a78b422462b210e8e875931
    Patch