CVE-2021-22555

2021-07-0700:00:00

ubuntu.com

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.3 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.002 Low

EPSS

Percentile

59.6%

JSON

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered
in net/netfilter/x_tables.c. This allows an attacker to gain privileges or
cause a DoS (via heap memory corruption) through user name space

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-144.148UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-74.83UNKNOWN
ubuntu20.10noarchlinux< 5.8.0-55.62UNKNOWN
ubuntu21.04noarchlinux< 5.11.0-18.19UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-187.238UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-213.245UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1103.110UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1049.51UNKNOWN
ubuntu20.10noarchlinux-aws< 5.8.0-1035.37UNKNOWN
ubuntu21.04noarchlinux-aws< 5.11.0-1008.8UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-144.148	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-74.83	UNKNOWN
ubuntu	20.10	noarch	linux	< 5.8.0-55.62	UNKNOWN
ubuntu	21.04	noarch	linux	< 5.11.0-18.19	UNKNOWN
ubuntu	14.04	noarch	linux	< 3.13.0-187.238	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-213.245	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1103.110	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1049.51	UNKNOWN
ubuntu	20.10	noarch	linux-aws	< 5.8.0-1035.37	UNKNOWN
ubuntu	21.04	noarch	linux-aws	< 5.11.0-1008.8	UNKNOWN