CVE-2019-8308
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.2 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 0.47% probability · 40th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-668
- Affected
- flatpak/flatpak · debian/debian linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html
- https://access.redhat.com/errata/RHSA-2019:0375Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922059Issue Tracking, Mailing List, Third Party Advisory
- https://github.com/flatpak/flatpak/releases/tag/1.0.7Third Party Advisory
- https://github.com/flatpak/flatpak/releases/tag/1.2.3Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html
- https://access.redhat.com/errata/RHSA-2019:0375Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922059Issue Tracking, Mailing List, Third Party Advisory
- https://github.com/flatpak/flatpak/releases/tag/1.0.7Third Party Advisory
- https://github.com/flatpak/flatpak/releases/tag/1.2.3Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.