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Fencer Intel
critical 10.0

CVE-2017-5226 json

When executing a program via the bubblewrap sandbox, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to pus…

published 2017-03-29 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-14331

cvss
10.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

When executing a program via the bubblewrap sandbox, the nonpriv session can escape to the parent session by using the TIOCSTI ioctl to push characters into the terminal's input buffer, allowing an attacker to escape the sandbox.

Patch / fix

  • bubblewrap Debian 14, Debian 13, Debian 12 0.1.5-2

debian advisories DEBIAN-CVE-2017-5226

  • bubblewrap openSUSE Tumbleweed 0.5.0-1.1
  • flatpak openSUSE Tumbleweed 1.11.3-1.2

opensuse advisories openSUSE-SU-2024:10663-1openSUSE-SU-2024:10762-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-5226 updated cvss 7.8

bubblewrap: Nonprivileged session can escape to the parent session by using the TIOCSTI ioctl

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.19% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/projectatomic/bubblewrap/issues/142 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.