CVE-2021-30002: debian debian_linux

Modified

AliasesUBUNTU-CVE-2021-30002DEBIAN-CVE-2021-30002

Published 02-04-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-30002 is a medium (CVSS 6.2) vulnerability in debian debian_linux. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 30.7% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 6.2, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

6.2/10

010

Medium · v3.1 (NVD)

EPSS score

0.37%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

02-04-2021
PublishedVulnerability first disclosed.
03-08-2024
Last modifiedVulnerability information updated.

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

4 scores · 3 sources · 2 versions

v3.16.2v2.02.1

EPSS trend

Probability

0.37%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.37% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-401Missing Release of Memory after Effective LifetimeThe product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Affected systems

Version check

Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu48 products

linuxAll versions (No fix recorded) | < 4.4.0-208.240 | < 4.15.0-143.147 | < 5.4.0-73.82
linux-aws< 4.4.0-1090.94 | < 4.4.0-1126.140 | < 4.15.0-1102.109 | < 5.4.0-1048.50
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1048.50~18.04.1

linux-aws-fips< 4.15.0-2044.46 | All versions (No fix recorded) | < 5.4.0-1069.73+fips2
linux-aws-hwe< 4.15.0-1102.109~16.04.1
linux-azure< 4.15.0-1114.127~14.04.1 | < 4.15.0-1114.127~16.04.1 | All versions (No fix recorded) | < 5.4.0-1047.49
linux-azure-4.15< 4.15.0-1114.127
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1047.49~18.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fips< 4.15.0-2026.29 | All versions (No fix recorded) | < 5.4.0-1073.76+fips1
linux-dell300x< 4.15.0-1018.22
linux-fips< 4.4.0-1060.66 | All versions (No fix recorded) | < 4.15.0-1059.67
linux-gcp< 4.15.0-1099.112~16.04.1 | All versions (No fix recorded) | < 5.4.0-1043.46
linux-gcp-4.15< 4.15.0-1099.112
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1043.46~18.04.1
linux-gcp-edgeAll versions (No fix recorded)
linux-gcp-fipsAll versions (No fix recorded) | < 5.4.0-1067.71~20.04.1
linux-gke< 5.4.0-1043.45
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.4< 5.4.0-1043.45~18.04.1
linux-gkeop< 5.4.0-1015.16
linux-gkeop-5.4< 5.4.0-1015.16~18.04.1
linux-hwe< 4.15.0-143.147~16.04.3 | All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-73.82~18.04.1
linux-hwe-5.8< 5.8.0-55.62~20.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-kvm< 4.4.0-1091.100 | < 4.15.0-1091.93 | < 5.4.0-1039.40
linux-lts-xenial< 4.4.0-208.240~14.04.1
linux-oemAll versions (No fix recorded)
linux-oem-5.10< 5.10.0-1021.22
linux-oem-5.6< 5.6.0-1056.60
linux-oracle< 4.15.0-1071.79~16.04.1 | < 4.15.0-1071.79 | < 5.4.0-1045.49
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1044.47~18.04.1
linux-raspi< 5.4.0-1035.38
linux-raspi-5.4< 5.4.0-1035.38~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1085.90 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded)
linux-riscvAll versions (No fix recorded)
linux-riscv-5.8< 5.8.0-26.28~20.04.1
linux-snapdragon< 4.15.0-1102.111