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ubuntucveUbuntu.comUB:CVE-2021-4203
HistoryMar 25, 2022 - 12:00 a.m.

CVE-2021-4203

2022-03-2500:00:00
ubuntu.com
ubuntu.com
50

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

4.9 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

52.4%

JSON

A use-after-free read flaw was found in sock_getsockopt() in
net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen()
(and connect()) in the Linux kernel. In this flaw, an attacker with a user
privileges may crash the system or leak internal kernel information.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-163.171UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-91.102UNKNOWN
ubuntu21.10noarchlinux< 5.13.0-23.23UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-239.273) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1116.123UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1060.63UNKNOWN
ubuntu21.10noarchlinux-aws< 5.13.0-1008.9UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1117.123) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1155.170) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux-aws-5.11< 5.11.0-1023.24~20.04.1UNKNOWN
Rows per page:
1-10 of 571

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Security Bulletin: Linux Kernel vulnerability may affect IBM Elastic Storage System (CVE-2021-4203)
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Security Bulletin: systemd vulnerability may affect IBM Elastic Storage System (CVE-2021-4203)
2022-12-12 09:37:59
Security Bulletin: Vulnerabilities in the Linux Kernel affect IBM Spectrum Copy Data Management
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(RHSA-2022:5633) Important: kernel-rt security and bug fix update
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6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

4.9 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

52.4%

JSON
Related for UB:CVE-2021-4203
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