Lucene search

K
ubuntucveUbuntu.comUB:CVE-2020-25669
HistoryNov 05, 2020 - 12:00 a.m.

CVE-2020-25669

2020-11-0500:00:00
ubuntu.com
ubuntu.com
31
linux kernel
use after free
sun4
sun5
keyboard driver

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

21.6%

A vulnerability was found in the Linux Kernel where the function
sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being
freed. Though the dangling pointer is set to NULL in sunkbd_disconnect,
there is still an alias in sunkbd_reinit causing Use After Free.

Notes

Author Note
sbeattie issue is specific to the sun4/sun5 keyboard driver.
Rows per page:
1-10 of 531

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

21.6%