CVE-2021-3679

2021-08-0500:00:00

ubuntu.com

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

A lack of CPU resource in the Linux kernel tracing module functionality in
versions prior to 5.14-rc3 was found in the way user uses trace ring buffer
in a specific way. Only privileged local users (with CAP_SYS_ADMIN
capability) could use this flaw to starve the resources causing denial of
service.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-159.167UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-88.99UNKNOWN
ubuntu21.04noarchlinux< 5.11.0-37.41UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-219.252UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1112.119UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1057.60UNKNOWN
ubuntu21.04noarchlinux-aws< 5.11.0-1019.20UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1099.104UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1135.149UNKNOWN
ubuntu20.04noarchlinux-aws-5.11< 5.11.0-1019.20~20.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-159.167	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-88.99	UNKNOWN
ubuntu	21.04	noarch	linux	< 5.11.0-37.41	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-219.252	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1112.119	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1057.60	UNKNOWN
ubuntu	21.04	noarch	linux-aws	< 5.11.0-1019.20	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1099.104	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1135.149	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.11	< 5.11.0-1019.20~20.04.1	UNKNOWN