synced 14 MIN AGO
01 Record

CVE-2021-47495

usbnet: sanity check for maxpacket

UnratedPUBLISHEDCNA: Linux
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

usbnet: sanity check for maxpacket

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.21% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 11.4% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. 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
2024-05-22 08:19Z2 YR AGO
Last updated
2026-05-11 13:55Z5 MO AGO
Reserved
2024-05-22
Assigning CNA
Linux
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.2
Document digest
c33b037d1a585cc8909797e2f61575625784ec690345ffab92b42a77eb1fa482

05 Affected products

VendorProductVersionsPlatforms
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b9eba0a4a527e04d712f0e0401e5391ef124b33e, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 524f333e98138d909a0a0c574a9ff6737dce2767, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 74b3b27cf9fecce00cd8918b7882fd81191d0aa4, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 002d82227c0abe29118cf80f7e2f396b22d448ed, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 492140e45d2bf27c1014243f8616a9b612144e20, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 693ecbe8f799405f8775719deedb1f76265d375a, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7e8b6a4f18edee070213cb6a77118e8a412253c5, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 397430b50a363d8b7bdda00522123f82df6adc5e, 2.6.12—

06 References

07 Fixed in

AlmaLinux 8

  • bpftool
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-abi-stablelists
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-core
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-cross-headers
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-core
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-modules
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-modules-extra
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-doc
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-headers
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-modules
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-modules-extra
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-rt
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-core
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-core
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-devel
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-kvm
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-modules
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-modules-extra
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-devel
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-kvm
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-modules
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-modules-extra
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-tools
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-tools-libs
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-tools-libs-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-core
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-modules
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-modules-extra
    Fixed in 4.18.0-553.8.1.el8_10
  • perf
    Fixed in 4.18.0-553.8.1.el8_10
  • python3-perf
    Fixed in 4.18.0-553.8.1.el8_10

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 4.18.0-553.8.1.el8_10
  • kernel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-abi-stablelists
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-core
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-cross-headers
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-core
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-modules
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-debug-modules-extra
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-doc
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-headers
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-modules
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-modules-extra
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-rt
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-core
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-core
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-devel
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-kvm
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-modules
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-debug-modules-extra
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-devel
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-kvm
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-modules
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-rt-modules-extra
    Fixed in 4.18.0-553.8.1.rt7.349.el8_10
  • kernel-tools
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-tools-libs
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-tools-libs-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-core
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-devel
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-modules
    Fixed in 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump-modules-extra
    Fixed in 4.18.0-553.8.1.el8_10
  • perf
    Fixed in 4.18.0-553.8.1.el8_10
  • python3-perf
    Fixed in 4.18.0-553.8.1.el8_10

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 5.14.16-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 5.14.16-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 5.14.16-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux-hwe-edge
    No fix yet

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 4.15.0-167.175
  • linux-aws
    Fixed in 4.15.0-1119.127
  • linux-aws-5.0
    No fix yet
  • linux-aws-5.3
    No fix yet
  • linux-aws-5.4
    Fixed in 5.4.0-1061.64~18.04.1
  • linux-azure
    No fix yet
  • linux-azure-4.15
    Fixed in 4.15.0-1131.144
  • linux-azure-5.3
    No fix yet
  • linux-azure-5.4
    Fixed in 5.4.0-1065.68~18.04.1
  • linux-azure-edge
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-4.15
    Fixed in 4.15.0-1115.129
  • linux-gcp-5.3
    No fix yet
  • linux-gcp-5.4
    Fixed in 5.4.0-1059.63~18.04.1
  • linux-gke-4.15
    No fix yet
  • linux-gke-5.4
    No fix yet
  • linux-gkeop-5.4
    No fix yet
  • linux-hwe
    No fix yet
  • linux-hwe-5.4
    Fixed in 5.4.0-92.103~18.04.2
  • linux-hwe-edge
    No fix yet
  • linux-kvm
    Fixed in 4.15.0-1106.108
  • linux-oem
    No fix yet
  • linux-oracle
    Fixed in 4.15.0-1086.94
  • linux-oracle-5.0
    No fix yet
  • linux-oracle-5.3
    No fix yet
  • linux-oracle-5.4
    Fixed in 5.4.0-1059.63~18.04.1
  • linux-raspi-5.4
    Fixed in 5.4.0-1048.53~18.04.1

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 5.4.0-92.103
  • linux-aws
    Fixed in 5.4.0-1061.64
  • linux-aws-5.11
    No fix yet
  • linux-aws-5.13
    No fix yet
  • linux-aws-5.8
    No fix yet
  • linux-azure
    Fixed in 5.4.0-1065.68
  • linux-azure-5.11
    No fix yet
  • linux-azure-5.13
    No fix yet
  • linux-azure-5.8
    No fix yet
  • linux-azure-fde
    No fix yet
  • linux-bluefield
    Fixed in 5.4.0-1023.26
  • linux-gcp
    Fixed in 5.4.0-1059.63
  • linux-gcp-5.11
    No fix yet
  • linux-gcp-5.13
    No fix yet
  • linux-gcp-5.8
    No fix yet
  • linux-gke
    No fix yet
  • linux-gke-5.15
    No fix yet
  • linux-gkeop
    Fixed in 5.4.0-1029.30
  • linux-hwe-5.11
    No fix yet
  • linux-hwe-5.13
    No fix yet
  • linux-hwe-5.8
    No fix yet
  • linux-ibm
    Fixed in 5.4.0-1010.11
  • linux-intel-5.13
    No fix yet
  • linux-kvm
    Fixed in 5.4.0-1051.53
  • linux-oem-5.10
    No fix yet
  • linux-oem-5.13
    No fix yet
  • linux-oem-5.14
    No fix yet
  • linux-oem-5.6
    No fix yet
  • linux-oracle
    Fixed in 5.4.0-1059.63
  • linux-oracle-5.11
    No fix yet
  • linux-oracle-5.13
    No fix yet
  • linux-oracle-5.8
    No fix yet
  • linux-raspi
    Fixed in 5.4.0-1048.53
  • linux-raspi2
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.11
    No fix yet
  • linux-riscv-5.8
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux-allwinner-5.19
    No fix yet
  • linux-aws-5.19
    No fix yet
  • linux-aws-6.2
    No fix yet
  • linux-azure-5.19
    No fix yet
  • linux-azure-6.2
    No fix yet
  • linux-azure-fde-5.19
    No fix yet
  • linux-azure-fde-6.2
    No fix yet
  • linux-gcp-5.19
    No fix yet
  • linux-gcp-6.2
    No fix yet
  • linux-hwe-5.19
    No fix yet
  • linux-hwe-6.2
    No fix yet
  • linux-intel-iot-realtime
    No fix yet
  • linux-lowlatency-hwe-5.19
    No fix yet
  • linux-lowlatency-hwe-6.2
    No fix yet
  • linux-nvidia-6.2
    No fix yet
  • linux-oem-5.17
    No fix yet
  • linux-oem-6.0
    No fix yet
  • linux-oem-6.1
    No fix yet
  • linux-realtime
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.19
    No fix yet
  • linux-starfive-5.19
    No fix yet
  • linux-starfive-6.2
    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
    No fix yet
  • linux-azure
    Fixed in 4.15.0-1130.143~14.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-lts-xenial
    No fix yet

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
    No fix yet
  • linux-aws
    No fix yet
  • linux-aws-hwe
    Fixed in 4.15.0-1119.126~16.04.2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure
    Fixed in 4.15.0-1130.143~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp
    Fixed in 4.15.0-1115.129~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe
    Fixed in 4.15.0-167.175~16.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-kvm
    No fix yet
  • linux-oracle
    Fixed in 4.15.0-1086.94~16.04.1
    Available 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
    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-updates 18.04 LTS

  • linux-aws-fips
    Fixed in 4.15.0-2060.62
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 4.15.0-2042.46
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 4.15.0-1076.85
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 4.15.0-2025.27
    Available 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+fips2
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.4.0-1073.76+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.4.0-1038.44
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.4.0-1067.71~20.04.1
    Available 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.