CVE-2023-0459

2023-04-2000:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

8.3%

JSON

Copy_from_user on 64-bit versions of the Linux kernel does not implement
the __uaccess_begin_nospec allowing a user to bypass the “access_ok” check
and pass a kernel pointer to copy_from_user(). This would allow an attacker
to leak information. We recommend upgrading beyond commit
74e19ef0ff8061ef55957c3abd71614ef0f42f47

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-211.222UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-149.166UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-72.79UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-42.43UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1156.169UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1102.110UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1036.40UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1025.26UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1036.40~20.04.1UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1103.111~18.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-211.222	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-149.166	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-72.79	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-42.43	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1156.169	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1102.110	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1036.40	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1025.26	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1036.40~20.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< 5.4.0-1103.111~18.04.1	UNKNOWN