CVE-2021-20239

2021-02-1700:00:00

ubuntu.com

3.3 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

11.7%

JSON

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF
protocol. This flaw allows an attacker with a local account to leak
information about kernel internal addresses. The highest threat from this
vulnerability is to confidentiality.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux-riscv-5.8< 5.8.0-22.24~20.04.1UNKNOWN
ubuntu20.04noarchlinux-bluefield< 5.4.0-1011.14UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-67.75UNKNOWN
ubuntu20.10noarchlinux< 5.8.0-49.55UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1039.41UNKNOWN
ubuntu20.10noarchlinux-aws< 5.8.0-1028.30UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1039.41~18.04.1UNKNOWN
ubuntu20.04noarchlinux-azure< 5.4.0-1041.43UNKNOWN
ubuntu20.10noarchlinux-azure< 5.8.0-1027.29UNKNOWN
ubuntu18.04noarchlinux-azure-5.4< 5.4.0-1041.43~18.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux-riscv-5.8	< 5.8.0-22.24~20.04.1	UNKNOWN
ubuntu	20.04	noarch	linux-bluefield	< 5.4.0-1011.14	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-67.75	UNKNOWN
ubuntu	20.10	noarch	linux	< 5.8.0-49.55	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1039.41	UNKNOWN
ubuntu	20.10	noarch	linux-aws	< 5.8.0-1028.30	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< 5.4.0-1039.41~18.04.1	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< 5.4.0-1041.43	UNKNOWN
ubuntu	20.10	noarch	linux-azure	< 5.8.0-1027.29	UNKNOWN
ubuntu	18.04	noarch	linux-azure-5.4	< 5.4.0-1041.43~18.04.1	UNKNOWN