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ubuntucveUbuntu.comUB:CVE-2021-3609
HistoryJun 21, 2021 - 12:00 a.m.

CVE-2021-3609

2021-06-2100:00:00
ubuntu.com
ubuntu.com
55

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.9 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.1%

.A flaw was found in the CAN BCM networking protocol in the Linux kernel,
where a local attacker can abuse a flaw in the CAN subsystem to corrupt
memory, crash the system or escalate privileges. This race condition in
net/can/bcm.c in the Linux kernel allows for local privilege escalation to
root.

Bugs

Notes

Author Note
cascardo On 4.4 kernels, a CAN device needs to be present. Otherwise, a virtual device cannot be created without manually loading vcan module.
Rows per page:
1-10 of 711

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.9 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.1%