flatpak: potential /proc based sandbox escape
Published Feb 12, 2019
8.2
HIGHCVSS 3.0
EPSS 0.47%
Description
Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file.
Affected products
No data.
Configuration 1
Configuration 2
- 9.0
- 10.0
Configuration 3
- 7.0
- 7.0
- 7.6
- 7.6
- 7.6
- 7.0
No data.
Red Hat Enterprise Linux 7
flatpak-0:1.0.2-4.el7_6
Fixed · RHSA-2019:0375
Red Hat Enterprise Linux 8
flatpak
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | flatpak-0:1.0.2-4.el7_6 | Fixed | RHSA-2019:0375 |
| Red Hat Enterprise Linux 8 | flatpak | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw appears to impact systems in special cases involving installing flatpak applications and runtimes system-wide. Installation of flatpak applications and runtimes locally should not be impacted.
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:R/S:C/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
AV:L/AC:M/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 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.47% (0.00466) | 37.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.47% (0.00466) | 36.55th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00068) | 18.19th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00052) | 22.38th | v3 (v2023.03.01) |
| May 18, 2024 | 0.05% (0.00052) | 20.02th | v3 (v2023.03.01) |
| Feb 6, 2024 | 0.05% (0.00052) | 17.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.06th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.67% (0.01669) | 53.27th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.36% (0.05363) | 79.74th | v1 |
| Jan 6, 2022 | 5.36% (0.05363) | 79.54th | v1 |
| Jan 5, 2022 | 1.25% (0.01247) | 69.74th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (9)
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html vendor-advisoryx_refsource_SUSE
- https://access.redhat.com/errata/RHSA-2019:0375 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-8308 Vendor Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922059 x_refsource_MISCIssue TrackingMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1675070 Issue Tracking
- https://github.com/flatpak/flatpak/releases/tag/1.0.7 x_refsource_MISCThird Party Advisory
- https://github.com/flatpak/flatpak/releases/tag/1.2.3 x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-8308
- https://www.cve.org/CVERecord?id=CVE-2019-8308
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html | vendor-advisoryx_refsource_SUSE | |
| https://access.redhat.com/errata/RHSA-2019:0375 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2019-8308 | Vendor Advisory | |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922059 | x_refsource_MISCIssue TrackingMailing ListThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1675070 | Issue Tracking | |
| https://github.com/flatpak/flatpak/releases/tag/1.0.7 | x_refsource_MISCThird Party Advisory | |
| https://github.com/flatpak/flatpak/releases/tag/1.2.3 | x_refsource_MISCThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-8308 | ||
| https://www.cve.org/CVERecord?id=CVE-2019-8308 |
Change history (0)
No recorded changes yet.