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cloudlinuxCloudLinuxCLSA-2021:1640621325
HistoryDec 27, 2021 - 4:08 p.m.

Fix of CVE: CVE-2021-3973, CVE-2021-3974, CVE-2021-4019, CVE-2021-4069, CVE-2021-3984

2021-12-2716:08:45
repo.cloudlinux.com
22
cve-2021-3974
regexp memory fix
cve-2021-3984
illegal memory access
cve-2021-3973
crash fix
ctrl-w f
cve-2021-4019
buffer overflow
help argument
cve-2021-4069
open command
unix

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

45.5%

  • CVE-2021-3974: fix using freed memory with regexp using a mark
  • CVE-2021-3984: fix illegal memory access when C-indenting
  • CVE-2021-3973: fix crash when using CTRL-W f without finding a file name
  • CVE-2021-4019: fix buffer overflow with long help argument
  • CVE-2021-4069: fix using freed memory in open command

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

45.5%