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ubuntucveUbuntu.comUB:CVE-2022-1419
HistoryMay 02, 2022 - 12:00 a.m.

CVE-2022-1419

2022-05-0200:00:00
ubuntu.com
ubuntu.com
22
vulnerability
cve-2022-1419
concurrent access
freed object
refcount
ioctl
unix

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

Percentile

12.6%

The root cause of this vulnerability is that the
ioctl$DRM_IOCTL_MODE_DESTROY_DUMB can decrease refcount of
*drm_vgem_gem_object *(created in vgem_gem_dumb_create) concurrently, and
*vgem_gem_dumb_create *will access the freed drm_vgem_gem_object.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-184.194UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-229.263UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1133.143UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1109.115UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1145.160UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1133.143~16.04.1UNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1142.156~14.04.1UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1142.156~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure-4.15< 4.15.0-1142.156UNKNOWN
ubuntu18.04noarchlinux-dell300x< 4.15.0-1047.52UNKNOWN
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CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

Percentile

12.6%