PT-2021-2559 · Linux+9 · Linux Kernel+9

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CVE-2021-30002

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Published

2021-01-12

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Updated

2023-05-17

CVSS v3.1

6.2

Medium

VectorAV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.11.3
Description: An issue was discovered in the Linux kernel when a webcam device exists, related to a memory leak in the video usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c for large arguments. This can lead to a denial of service.
Recommendations: For Linux kernel versions prior to 5.11.3, update to version 5.11.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the video usercopy function in drivers/media/v4l2-core/v4l2-ioctl.c to minimize the risk of exploitation.

Fix

DoS

Memory Leak

Missing Release of Resource after Effective Lifetime

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Weakness Enumeration

Related Identifiers

ALSA-2022:7444
ALSA-2022:7683
ALT-PU-2021-1447
ALT-PU-2021-1525
ALT-PU-2021-1869
ALT-PU-2021-1888
ALT-PU-2021-1896
ALT-PU-2022-1240
ALT-PU-2022-1419
ALT-PU-2022-1421
ALT-PU-2023-1814
AZL-6555
BDU:2021-01985
CESA-2022_7444
CESA-2022_7683
CVE-2021-30002
DLA-2689-1
OESA-2021-1176
OPENSUSE-SU-2021:0579-1
OPENSUSE-SU-2021:0758-1
OPENSUSE-SU-2021:1975-1
OPENSUSE-SU-2021:1977-1
OPENSUSE-SU-2021_0579-1
OPENSUSE-SU-2021_0758-1
OPENSUSE-SU-2021_1975-1
OPENSUSE-SU-2021_1977-1
RHSA-2022:7444
RHSA-2022:7683
RHSA-2022_7444
RHSA-2022_7683
RHSA-2024:0724
RLSA-2022:7444
RLSA-2022:7683
SUSE-SU-2021:1210-1
SUSE-SU-2021:1211-1
SUSE-SU-2021:1238-1
SUSE-SU-2021:1248-1
SUSE-SU-2021:1266-1
SUSE-SU-2021:1301-1
SUSE-SU-2021:14724-1
SUSE-SU-2021:1573-1
SUSE-SU-2021:1596-1
SUSE-SU-2021:1617-1
SUSE-SU-2021:1623-1
SUSE-SU-2021:1624-1
SUSE-SU-2021:1625-1
SUSE-SU-2021:1975-1
SUSE-SU-2021:1977-1
SUSE-SU-2021_14724-1
USN-4945-1
USN-4945-2
USN-4946-1
USN-4947-1
USN-4984-1

Affected Products

Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Rocky Linux
Suse
Ubuntu