01 Record
CVE-2021-47459
can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv
HighPUBLISHEDCNA: Linux
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
02 Description
can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv
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.
- EPSS probability
- 0.22% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 13.2% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (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:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-08-04.
- 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
- 2024-05-22 06:23Z2 YR AGO
- Last updated
- 2026-08-05 08:47Z2 MO AGO
- Reserved
- 2024-05-22
- Assigning CNA
- Linux
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- 6bb69d6fd28bc1737302f1f94df04cce3dac10d30e2b3b8e983ecec071b118e3
05 Affected products
VendorProductVersionsPlatforms
LinuxLinux9d71dd0c70099914fcd063135da3c580865e924c to < a0e47d2833b4f65e6c799f28c6b636d36b8b936d, 9d71dd0c70099914fcd063135da3c580865e924c to < 864e77771a24c877aaf53aee019f78619cbcd668, 9d71dd0c70099914fcd063135da3c580865e924c to < 6e8811707e2df0c6ba920f0cad3a3bca7b42132f, 9d71dd0c70099914fcd063135da3c580865e924c to < d9d52a3ebd284882f5562c88e55991add5d01586, 5.4—
06 References
- git.kernel.orghttps://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d
- git.kernel.orghttps://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668
- git.kernel.orghttps://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f
- git.kernel.orghttps://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586
07 Fixed in
AlmaLinux 9
- bpftool Fixed in 7.3.0-427.28.1.el9_4
- kernel Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-abi-stablelists Fixed in 5.14.0-427.28.1.el9_4
- kernel-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-cross-headers Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-uki-virt Fixed in 5.14.0-427.28.1.el9_4
- kernel-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-doc Fixed in 5.14.0-427.28.1.el9_4
- kernel-headers Fixed in 5.14.0-427.28.1.el9_4
- kernel-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug-modules Fixed in 5.14.0-427.28.1.el9_4
22 further packages in AlmaLinux 9 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- bpftool Fixed in 7.3.0-427.28.1.el9_4
- kernel Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-debug-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-64k-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-abi-stablelists Fixed in 5.14.0-427.28.1.el9_4
- kernel-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-cross-headers Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-debug-uki-virt Fixed in 5.14.0-427.28.1.el9_4
- kernel-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-devel-matched Fixed in 5.14.0-427.28.1.el9_4
- kernel-doc Fixed in 5.14.0-427.28.1.el9_4
- kernel-headers Fixed in 5.14.0-427.28.1.el9_4
- kernel-modules Fixed in 5.14.0-427.28.1.el9_4
- kernel-modules-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-modules-extra Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug-core Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug-devel Fixed in 5.14.0-427.28.1.el9_4
- kernel-rt-debug-modules Fixed in 5.14.0-427.28.1.el9_4
22 further packages in CloudLinux 9 not shown (first 40 listed).
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 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-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-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-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-oem No fix yet
- 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 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-fips Fixed in 5.4.0-1038.44Available 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 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.