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Debian Security Bug TrackerDEBIANCVE:CVE-2021-33655HistoryJul 18, 2022 - 3:15 p.m.
CVE-2021-33655
2022-07-1815:15:07
Debian Security Bug Tracker
security-tracker.debian.org
34
cve-2021-33655
ioctl command
kernel vulnerability
memory write
unix
CVSS3
6.7
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
EPSS
0
Percentile
5.1%
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | linux | < 5.18.14-1 | linux_5.18.14-1_all.deb |
| Debian | 11 | all | linux | < 5.10.127-2 | linux_5.10.127-2_all.deb |
| Debian | 999 | all | linux | < 5.18.14-1 | linux_5.18.14-1_all.deb |
| Debian | 13 | all | linux | < 5.18.14-1 | linux_5.18.14-1_all.deb |
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CVSS3
6.7
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
EPSS
0
Percentile
5.1%
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