The HMAC implementation (crypto/hmac.c) in the Linux kernel before 4.14.8 does not validate that the underlying cryptographic hash algorithm is unkeyed, allowing a local attacker able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Dec 20, 2017 |
| Centos_linux | — | Upgrade kernel | Aug 28, 2019 | Dec 20, 2017 |
| Debian | — | Upgrade linux | Dec 24, 2017 | Dec 20, 2017 |
| Huawei Euleros 2_0_sp1 | — | Upgrade kernel-debugUpgrade python-perfUpgrade kernelUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-tools-libsUpgrade kernel-develUpgrade perfUpgrade kernel-headers | Jan 30, 2018 | Dec 20, 2017 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-debugUpgrade kernelUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-debug-develUpgrade perfUpgrade python-perfUpgrade kernel-develUpgrade kernel-toolsUpgrade kernel-tools-libs | Jan 22, 2018 | Dec 20, 2017 |
| Oracle_linux | — | Upgrade kernel-uek | Dec 7, 2018 | Nov 29, 2017 |
| Redhat_linux | — | Upgrade kernel | Oct 31, 2018 | Dec 20, 2017 |
| Suse | — | Upgrade kernel-source-azureUpgrade kernel-devel-azureUpgrade kernel-azure-baseUpgrade kernel-default-extraUpgrade kernel-obs-buildUpgrade kernel-default-manUpgrade kernel-docsUpgrade kernel-default | Jan 4, 2018 | Dec 20, 2017 |
| Ubuntu | — | Upgrade linux-image-4.13.0-1014-azureUpgrade linux-image-4.4.0-1020-kvmUpgrade linux-image-generic-lpaeUpgrade linux-image-4.13.0-1016-raspi2Upgrade linux-image-powerpc-e500mc-lts-xenialUpgrade linux-image-4.4.0-119-powerpc64-embUpgrade linux-image-4.4.0-119-powerpc-e500mcUpgrade linux-image-4.13.0-38-generic-lpaeUpgrade linux-image-lowlatencyUpgrade linux-image-3.13.0-142-powerpc64-smpUpgrade linux-image-generic-lpae-lts-trustyUpgrade linux-image-3.13.0-142-powerpc64-embUpgrade linux-image-4.4.0-119-genericUpgrade linux-image-4.4.0-1086-raspi2Upgrade linux-image-powerpc64-smp-lts-xenialUpgrade linux-image-3.13.0-142-genericUpgrade linux-image-3.13.0-142-powerpc-e500mcUpgrade linux-image-kvmUpgrade linux-image-3.13.0-142-powerpc-e500Upgrade linux-image-4.13.0-38-lowlatencyUpgrade linux-image-azureUpgrade linux-image-generic-lpae-hwe-16.04Upgrade linux-image-4.13.0-1022-oemUpgrade linux-image-powerpc-e500mcUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-4.4.0-1088-snapdragonUpgrade linux-image-generic-lpae-lts-xenialUpgrade linux-image-4.4.0-119-generic-lpaeUpgrade linux-image-awsUpgrade linux-image-snapdragonUpgrade linux-image-oemUpgrade linux-image-powerpc-smpUpgrade linux-image-gkeUpgrade linux-image-generic-lts-xenialUpgrade linux-image-raspi2Upgrade linux-image-4.4.0-1054-awsUpgrade linux-image-4.4.0-1016-awsUpgrade linux-image-3.13.0-142-lowlatencyUpgrade linux-image-4.4.0-119-lowlatencyUpgrade linux-image-4.13.0-38-genericUpgrade linux-image-powerpc-smp-lts-xenialUpgrade linux-image-generic-lts-trustyUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-powerpc-e500Upgrade linux-image-3.13.0-142-generic-lpaeUpgrade linux-image-powerpc64-emb-lts-xenialUpgrade linux-image-powerpc64-embUpgrade linux-image-4.4.0-119-powerpc-smpUpgrade linux-image-powerpc64-smpUpgrade linux-image-gcpUpgrade linux-image-4.4.0-119-powerpc64-smpUpgrade linux-image-genericUpgrade linux-image-4.13.0-1012-gcpUpgrade linux-image-3.13.0-142-powerpc-smp | Feb 24, 2018 | Dec 20, 2017 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Dec 20, 2017 |
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