CVE-2021-30002
An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka
02 Description
An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 30.4% of scored records. A rank, not a probability.
- NVD base score
- 6.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-04-02 04:18Z5 YR AGO
- Last updated
- 2024-08-03 22:24Z2 YR AGO
- Reserved
- 2021-04-02
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 231c6ab1aad778fc853bf7f7bf3b64d9160baa07e27864254a31588d8f8ee9e2
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb18802a338b36f675a388fc03d2aa504a0d0899
- bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1184120
- cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.3
- lists.debian.org[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-425.3.1.el8
- kernel Fixed in 4.18.0-425.3.1.el8
- kernel-abi-stablelists Fixed in 4.18.0-425.3.1.el8
- kernel-core Fixed in 4.18.0-425.3.1.el8
- kernel-cross-headers Fixed in 4.18.0-425.3.1.el8
- kernel-debug Fixed in 4.18.0-425.3.1.el8
- kernel-debug-core Fixed in 4.18.0-425.3.1.el8
- kernel-debug-devel Fixed in 4.18.0-425.3.1.el8
- kernel-debug-modules Fixed in 4.18.0-425.3.1.el8
- kernel-debug-modules-extra Fixed in 4.18.0-425.3.1.el8
- kernel-devel Fixed in 4.18.0-425.3.1.el8
- kernel-doc Fixed in 4.18.0-425.3.1.el8
- kernel-headers Fixed in 4.18.0-425.3.1.el8
- kernel-modules Fixed in 4.18.0-425.3.1.el8
- kernel-modules-extra Fixed in 4.18.0-425.3.1.el8
- kernel-rt Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-core Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-core Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-devel Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-kvm Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-modules Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-modules-extra Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-devel Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-kvm Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-modules Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-modules-extra Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-tools Fixed in 4.18.0-425.3.1.el8
- kernel-tools-libs Fixed in 4.18.0-425.3.1.el8
- kernel-tools-libs-devel Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-core Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-devel Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-modules Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-425.3.1.el8
- perf Fixed in 4.18.0-425.3.1.el8
- python3-perf Fixed in 4.18.0-425.3.1.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bpftool Fixed in 4.18.0-425.3.1.el8
- kernel Fixed in 4.18.0-425.3.1.el8
- kernel-abi-stablelists Fixed in 4.18.0-425.3.1.el8
- kernel-core Fixed in 4.18.0-425.3.1.el8
- kernel-cross-headers Fixed in 4.18.0-425.3.1.el8
- kernel-debug Fixed in 4.18.0-425.3.1.el8
- kernel-debug-core Fixed in 4.18.0-425.3.1.el8
- kernel-debug-devel Fixed in 4.18.0-425.3.1.el8
- kernel-debug-modules Fixed in 4.18.0-425.3.1.el8
- kernel-debug-modules-extra Fixed in 4.18.0-425.3.1.el8
- kernel-devel Fixed in 4.18.0-425.3.1.el8
- kernel-doc Fixed in 4.18.0-425.3.1.el8
- kernel-headers Fixed in 4.18.0-425.3.1.el8
- kernel-modules Fixed in 4.18.0-425.3.1.el8
- kernel-modules-extra Fixed in 4.18.0-425.3.1.el8
- kernel-rt Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-core Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-core Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-devel Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-kvm Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-modules Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-debug-modules-extra Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-devel Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-kvm Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-modules Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-rt-modules-extra Fixed in 4.18.0-425.3.1.rt7.213.el8
- kernel-tools Fixed in 4.18.0-425.3.1.el8
- kernel-tools-libs Fixed in 4.18.0-425.3.1.el8
- kernel-tools-libs-devel Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-core Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-devel Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-modules Fixed in 4.18.0-425.3.1.el8
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-425.3.1.el8
- perf Fixed in 4.18.0-425.3.1.el8
- python3-perf Fixed in 4.18.0-425.3.1.el8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 5.10.24-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.10.24-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.10.24-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-208.240
- linux-aws Fixed in 4.4.0-1126.140
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1091.100
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-143.147
- linux-aws Fixed in 4.15.0-1102.109
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1048.50~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1114.127
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1047.49~18.04.1
- linux-azure-edge No fix yet
- linux-dell300x Fixed in 4.15.0-1018.22
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1099.112
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1043.46~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 Fixed in 5.4.0-1043.45~18.04.1
- linux-gkeop-5.4 Fixed in 5.4.0-1015.16~18.04.1
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-73.82~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1091.93
- linux-oem No fix yet
- linux-oracle Fixed in 4.15.0-1071.79
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1044.47~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1035.38~18.04.1
- linux-raspi2 Fixed in 4.15.0-1085.90
- linux-snapdragon Fixed in 4.15.0-1102.111
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-73.82
- linux-aws Fixed in 5.4.0-1048.50
- linux-azure Fixed in 5.4.0-1047.49
- linux-gcp Fixed in 5.4.0-1043.46
- linux-gke Fixed in 5.4.0-1043.45
- linux-gkeop Fixed in 5.4.0-1015.16
- linux-hwe-5.8 Fixed in 5.8.0-55.62~20.04.1
- linux-kvm Fixed in 5.4.0-1039.40
- linux-oem-5.10 Fixed in 5.10.0-1021.22
- linux-oem-5.6 Fixed in 5.6.0-1056.60
- linux-oracle Fixed in 5.4.0-1045.49
- linux-raspi Fixed in 5.4.0-1035.38
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.8 Fixed in 5.8.0-26.28~20.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux No fix yet
- linux-aws Fixed in 4.4.0-1090.94Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1114.127~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-208.240~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- linux-aws-hwe Fixed in 4.15.0-1102.109~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1114.127~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1099.112~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-143.147~16.04.3Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1071.79~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1060.66Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2044.46Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2026.29Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1059.67Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1069.73+fips2Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1073.76+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1067.71~20.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 20.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.