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PRIOn knowledge basePRION:CVE-2021-26910HistoryFeb 08, 2021 - 8:15 p.m.
Race condition
2021-02-0820:15:00
PRIOn knowledge base
www.prio-n.com
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Firejail 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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| debian_linux | eq | 9.0 | |
| debian_linux | eq | 10.0 | |
| firejail | lt | 0.9.64.4 |
References
www.openwall.com/lists/oss-security/2021/02/09/1
github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b
github.com/netblue30/firejail/releases/tag/0.9.64.4
lists.debian.org/debian-lts-announce/2021/02/msg00015.html
security.gentoo.org/glsa/202105-19
unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/
unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt
www.debian.org/security/2021/dsa-4849
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