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ubuntucveUbuntu.comUB:CVE-2021-3753
HistorySep 02, 2021 - 12:00 a.m.

CVE-2021-3753

2021-09-0200:00:00
ubuntu.com
ubuntu.com
29

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

24.2%

A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in
the Linux kernel, which may cause an out of bounds read in vt as the write
access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The
highest threat from this vulnerability is to data confidentiality.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-162.170UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-90.101UNKNOWN
ubuntu21.04noarchlinux< 5.11.0-38.42UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-242.276UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1115.122UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1059.62UNKNOWN
ubuntu21.04noarchlinux-aws< 5.11.0-1020.21UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1120.126UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1158.173UNKNOWN
ubuntu20.04noarchlinux-aws-5.11< 5.11.0-1020.21~20.04.2UNKNOWN
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CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.001

Percentile

24.2%