Vulnerability Details : CVE-2019-10063
Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the controlling terminal so that they would be executed outside the sandbox after the sandboxed app exits. This fix was incomplete: on 64-bit platforms, the seccomp filter could be bypassed by an ioctl request number that has TIOCSTI in its 32 least significant bits and an arbitrary nonzero value in its 32 most significant bits, which the Linux kernel would treat as equivalent to TIOCSTI.
Vulnerability category: Input validation
Products affected by CVE-2019-10063
- cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*
- cpe:2.3:a:flatpak:flatpak:1.3.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-10063
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-10063
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
9.0
|
CRITICAL | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
2.2
|
6.0
|
NIST |
CWE ids for CVE-2019-10063
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-10063
-
https://access.redhat.com/errata/RHSA-2019:1143
RHSA-2019:1143 - Security Advisory - Red Hat Customer Portal
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https://access.redhat.com/errata/RHSA-2019:1024
RHSA-2019:1024 - Security Advisory - Red Hat Customer Portal
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https://github.com/flatpak/flatpak/issues/2782
CVE-2019-10063: incomplete TIOCSTI filtering, similar to snapd's CVE-2019-7303 · Issue #2782 · flatpak/flatpak · GitHubIssue Tracking;Patch;Third Party Advisory
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