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ubuntucveUbuntu.comUB:CVE-2021-26910
HistoryFeb 08, 2021 - 12:00 a.m.

CVE-2021-26910

2021-02-0800:00:00
ubuntu.com
ubuntu.com
47

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

29.7%

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.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirejail< anyUNKNOWN
ubuntu20.04noarchfirejail< 0.9.62-3ubuntu0.1UNKNOWN
ubuntu16.04noarchfirejail< anyUNKNOWN

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

29.7%