CVE-2017-17806

CVE Details

Release Date:2017-12-20

Description


The HMAC implementation (crypto/hmac.c) in the Linux kernel before4.14.8 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.

See more information about CVE-2017-17806 from MITRE CVE dictionary and NIST NVD


Notes



CVSS v2 metrics


NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score: Base Metrics:
Access Vector: Undefined Confidentiality Impact: Undefined
Access Impact: Undefined Integrity Impact: Undefined
Authentication: Undefined Availability Impact: Undefined

Errata information


PlatformErrataRelease Date
Oracle Linux version 5 (kernel-uek)ELSA-2018-43012018-12-09
Oracle Linux version 6 (dtrace-modules-3.8.13-118.28.1.el6uek)ELSA-2018-43002018-12-06
Oracle Linux version 6 (dtrace-modules-3.8.13-118.29.1.el6uek)ELSA-2019-43162019-01-04
Oracle Linux version 6 (kernel-uek)ELSA-2018-42992018-12-06
Oracle Linux version 6 (kernel-uek)ELSA-2018-43002018-12-06
Oracle Linux version 6 (kernel-uek)ELSA-2018-43012018-12-09
Oracle Linux version 6 (kernel-uek)ELSA-2019-43162019-01-04
Oracle Linux version 7 (dtrace-modules-3.8.13-118.28.1.el7uek)ELSA-2018-43002018-12-06
Oracle Linux version 7 (dtrace-modules-3.8.13-118.29.1.el7uek)ELSA-2019-43162019-01-04
Oracle Linux version 7 (kernel-uek)ELSA-2018-42992018-12-06
Oracle Linux version 7 (kernel-uek)ELSA-2018-43002018-12-06
Oracle Linux version 7 (kernel-uek)ELSA-2019-43162019-01-04
Oracle VM version 3.4 (kernel-uek)OVMSA-2018-02862018-12-07



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