CVE-2021-26910

Katalog CVE

CVSS 7.0 · High EPSS 0,44%

Kerentanan Time-of-check Time-of-use (TOCTOU) Race Condition pada firejail project firejail, debian linux. Skor CVSS 3.1 7.0 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

8 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.0 (High), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

EPSS (30 hari)

0,44% peluang dieksploitasi; lebih tinggi dari 36,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://www.openwall.com/lists/oss-security/2021/02/09/1 exploit · mailing list · patch · advisory pihak ketiga
• https://github.com/netblue30/firejail/commit/97d8a03cad19501f017587cc4e47d8418273834b patch · advisory pihak ketiga
• https://github.com/netblue30/firejail/releases/tag/0.9.64.4 release notes · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2021/02/msg00015.html advisory pihak ketiga
• https://security.gentoo.org/glsa/202105-19 advisory pihak ketiga
• https://unparalleled.eu/blog/2021/20210208-rigged-race-against-firejail-for-local-root/ exploit · advisory pihak ketiga
• https://unparalleled.eu/publications/2021/advisory-unpar-2021-0.txt exploit · advisory pihak ketiga
• https://www.debian.org/security/2021/dsa-4849 advisory pihak ketiga