CVE-2021-26910

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Summary

CVECVE-2021-26910
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-08 20:15:00 UTC
Updated2022-05-23 22:01:00 UTC
DescriptionFirejail before 0.9.64.4 allows attackers to bypass intended access restrictions because there is a TOCTOU race condition between a stat operation and an OverlayFS mount operation.

Risk And Classification

Problem Types: CWE-367

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Firejail Project Firejail All All All All
Application Firejail Project Firejail All All All All

References

ReferenceSourceLinkTags
Rigged Race Against Firejail for Local Root MISC unparalleled.eu Exploit, Third Party Advisory
Release Version 0.9.64.4 · netblue30/firejail · GitHub MISC github.com Release Notes, Third Party Advisory
unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt MISC unparalleled.eu Exploit, Third Party Advisory
Firejail: Privilege escalation (GLSA 202105-19) — Gentoo security GENTOO security.gentoo.org
[SECURITY] [DLA 2554-1] firejail security update MLIST lists.debian.org Third Party Advisory
oss-security - Re: [cve-pending] Firejail: root privilege escalation in OverlayFS code MLIST www.openwall.com Exploit, Mailing List, Patch, Third Party Advisory
Debian -- Security Information -- DSA-4849-1 firejail DEBIAN www.debian.org Third Party Advisory
disabled overlayfs, 0.9.64.4 testing · netblue30/firejail@97d8a03 · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180543 Debian Security Update for firejail (CVE-2021-26910)
  • 198570 Ubuntu Security Notification for Firejail Vulnerability (USN-5141-1)
  • 501559 Alpine Linux Security Update for firejail
  • 710097 Gentoo Linux Firejail Privilege escalation vulnerability (GLSA 202105-19)
  • 750367 OpenSUSE Security Update for firejail (openSUSE-SU-2021:0271-1)

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