flatpak: sandbox escape in D-Bus filtering by a crafted authentication handshake
Published Feb 2, 2018
8.8
HIGHCVSS 3.0
EPSS 0.41%
Description
In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.
Affected products
No data.
Configuration 1
Configuration 2
- 7.0
- 7.0
- 7.6
- 7.5
- 7.6
- 7.6
- 7.0
No data.
Red Hat Enterprise Linux 7
flatpak-0:0.8.8-4.el7_5
Fixed · RHSA-2018:2766
Red Hat Enterprise Linux 8
flatpak
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | flatpak-0:0.8.8-4.el7_5 | Fixed | RHSA-2018:2766 |
| Red Hat Enterprise Linux 8 | flatpak | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.41% (0.00412) | 33.15th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.41% (0.00412) | 35.18th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.06% (0.00059) | 25.56th | v3 (v2023.03.01) |
| May 25, 2024 | 0.06% (0.00059) | 24.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (8)
- https://access.redhat.com/errata/RHSA-2018:2766 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-6560 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1542207 Issue Tracking
- https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6 x_refsource_CONFIRMPatchVendor Advisory
- https://github.com/flatpak/flatpak/releases/tag/0.10.3 x_refsource_CONFIRMRelease Notes
- https://github.com/flatpak/flatpak/releases/tag/0.8.9 x_refsource_CONFIRMRelease Notes
- https://nvd.nist.gov/vuln/detail/CVE-2018-6560
- https://www.cve.org/CVERecord?id=CVE-2018-6560
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:2766 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-6560 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1542207 | Issue Tracking | |
| https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://github.com/flatpak/flatpak/releases/tag/0.10.3 | x_refsource_CONFIRMRelease Notes | |
| https://github.com/flatpak/flatpak/releases/tag/0.8.9 | x_refsource_CONFIRMRelease Notes | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-6560 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-6560 |
Change history (0)
No recorded changes yet.