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CVE-2019-10063: flatpak Improper Input Validation

CVSS: 9.0v3.0CriticalModified
AliasesRHSA-2019:1024RHSA-2019:1143UBUNTU-CVE-2019-10063
Published 26-03-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-10063 is a critical (CVSS 9.0) Improper Input Validation vulnerability in flatpak. EPSS estimates a 1.91% chance of exploitation in the next 30 days, higher than 79.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
Critical · v3.0 (NVD)
EPSS score
1.91%
0%100%
Low · +0.22 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:10762-1

Timeline

  1. 26-03-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.91%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

+0.22 pp

From 1.69% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.91%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat7 products
  • flatpak< 0:1.0.2-5.el7_6 | < 0:1.0.6-3.el8_0
  • flatpak-builder< 0:1.0.0-5.el7_6
  • flatpak-debuginfo< 0:1.0.2-5.el7_6 | < 0:1.0.6-3.el8_0
  • flatpak-debugsource< 0:1.0.6-3.el8_0
  • flatpak-devel< 0:1.0.2-5.el7_6
Debian1 product
  • flatpak< 1.2.3-2
Flatpak1 product
  • flatpak< 1.0.8 | ≥ 1.1.0, ≤ 1.1.3 | ≥ 1.2.0, < 1.2.4 | 1.3.0
Ubuntu1 product
  • flatpak< 1.0.8-0ubuntu0.18.04.1

4 vendors · 10 products

References

13 links
Show all 13 references