CVE-2019-10063

Critical

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.

Package Linux Kernel
Published 2019-03-26
Last modified 2024-11-21
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

9.0

out of 10
Critical
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness type

CWE-20

CVE-2019-10063 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2019-10063 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2019-10063?

    CVE-2019-10063 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.0 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2019-10063 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2019-10063?

    CVE-2019-10063 has a CVSS score of 9.0 out of 10, rated Critical severity (CVSS 3.0). The vector string is CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H .

  • Is there a patch available for CVE-2019-10063?

    No patch is currently available for CVE-2019-10063. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2019-10063 actively exploited?

    No — CVE-2019-10063 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Improper Input Validation (CWE-20)?

    The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →

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