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Ubuntu.comUB:CVE-2021-33655
HistoryJul 18, 2022 - 12:00 a.m.

CVE-2021-33655

2022-07-1800:00:00
ubuntu.com
ubuntu.com
23

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

MULTIPLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.4%

When sending malicous data to kernel by ioctl cmd
FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.

OSVersionArchitecturePackageVersionFilename
ubuntuupstreamnoarchlinux< 5.19~rc6UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-234.268)available with ubuntu pro or ubuntu pro (infra-onlyUNKNOWN
ubuntu20.04noarchlinux< 5.4.0-126.142UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-48.54UNKNOWN
ubuntu14.04noarchlinux< anyUNKNOWN
ubuntu18.04noarchlinux< 4.15.0-193.204UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1150.165)available with ubuntu pro or ubuntu pro (infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1141.152UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1113.119)available with ubuntu pro or ubuntu pro (infra-onlyUNKNOWN
ubuntuupstreamnoarchlinux-aws< 5.19~rc6UNKNOWN
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References

Use Vulners API to create your own security tool

API usage cases
  • Network scanning
  • Linux Patch management
  • Threat protection
  • No network audit solution

Ways of integration

Integrate Vulners API

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

MULTIPLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.4%

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