CVE-2021-30002
Vulnerability Summary
Timeline
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 CID-fb18802a338b.
CVSS Metrics
- v3.1•MEDIUM•Score: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.37%• Percentile: 31%
Techniques & Countermeasures
- CWE-401•Missing Release of Memory after Effective Lifetime
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Affected Systems
- debian•linux
< 5.10.24-1 | < 5.10.24-1 | < 5.10.24-1 | < 5.10.24-1
- ubuntu•linux
all | < 4.4.0-208.240 | < 4.15.0-143.147 | < 5.4.0-73.82
- ubuntu•linux-aws
< 4.4.0-1090.94 | < 4.4.0-1126.140 | < 4.15.0-1102.109 | < 5.4.0-1048.50
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
< 5.4.0-1048.50~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2044.46 | all | < 5.4.0-1069.73+fips2
- ubuntu•linux-aws-hwe
< 4.15.0-1102.109~16.04.1
- ubuntu•linux-azure
< 4.15.0-1114.127~14.04.1 | < 4.15.0-1114.127~16.04.1 | all | < 5.4.0-1047.49
- ubuntu•linux-azure-4.15
< 4.15.0-1114.127
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
< 5.4.0-1047.49~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fips
< 4.15.0-2026.29 | all | < 5.4.0-1073.76+fips1
- ubuntu•linux-bluefield
all
- ubuntu•linux-dell300x
< 4.15.0-1018.22
- ubuntu•linux-fips
< 4.4.0-1060.66 | all | < 4.15.0-1059.67
- ubuntu•linux-gcp
< 4.15.0-1099.112~16.04.1 | all | < 5.4.0-1043.46
- ubuntu•linux-gcp-4.15
< 4.15.0-1099.112
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
< 5.4.0-1043.46~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all | < 5.4.0-1067.71~20.04.1
- ubuntu•linux-gke
< 5.4.0-1043.45
- ubuntu•linux-gke-4.15
all
- ubuntu•linux-gke-5.4
< 5.4.0-1043.45~18.04.1
- ubuntu•linux-gkeop
< 5.4.0-1015.16
- ubuntu•linux-gkeop-5.4
< 5.4.0-1015.16~18.04.1
- ubuntu•linux-hwe
< 4.15.0-143.147~16.04.3 | all
- ubuntu•linux-hwe-5.4
< 5.4.0-73.82~18.04.1
- ubuntu•linux-hwe-5.8
< 5.8.0-55.62~20.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1091.100 | < 4.15.0-1091.93 | < 5.4.0-1039.40
- ubuntu•linux-lts-xenial
< 4.4.0-208.240~14.04.1
- ubuntu•linux-oem
all
- ubuntu•linux-oem-5.10
< 5.10.0-1021.22
- ubuntu•linux-oem-5.6
< 5.6.0-1056.60
- ubuntu•linux-oracle
< 4.15.0-1071.79~16.04.1 | < 4.15.0-1071.79 | < 5.4.0-1045.49
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
all
- ubuntu•linux-oracle-5.4
< 5.4.0-1044.47~18.04.1
- ubuntu•linux-raspi
< 5.4.0-1035.38
- ubuntu•linux-raspi-5.4
< 5.4.0-1035.38~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.15.0-1085.90 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
- ubuntu•linux-riscv-5.8
< 5.8.0-26.28~20.04.1
- ubuntu•linux-snapdragon
< 4.15.0-1102.111
Showing first 50 affected entries in server-rendered view.
References (13)
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb18802a338b36f675a388fc03d2aa504a0d0899
- https://bugzilla.suse.com/show_bug.cgi?id=1184120
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.3
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://ubuntu.com/security/CVE-2021-30002
- https://git.kernel.org/linus/fb18802a338b36f675a388fc03d2aa504a0d0899
- https://ubuntu.com/security/notices/USN-4945-1
- https://ubuntu.com/security/notices/USN-4946-1
- https://ubuntu.com/security/notices/USN-4947-1
- https://ubuntu.com/security/notices/USN-4945-2
- https://ubuntu.com/security/notices/USN-4984-1
- https://www.cve.org/CVERecord?id=CVE-2021-30002
- https://security-tracker.debian.org/tracker/CVE-2021-30002