Description
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.
Published: 2017-12-20
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1232-1 linux security update
Debian DSA Debian DSA DSA-4073-1 linux security update
Debian DSA Debian DSA DSA-4082-1 linux security update
EUVD EUVD EUVD-2017-8957 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.
Ubuntu USN Ubuntu USN USN-3583-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3583-2 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3617-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3617-2 Linux (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3617-3 Linux kernel (Raspberry Pi 2) vulnerabilities
Ubuntu USN Ubuntu USN USN-3619-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3619-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3632-1 Linux kernel (Azure) vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Linux Linux Kernel
Opensuse Leap
Opensuse Project Leap
Redhat Enterprise Linux
Suse Linux Enterprise Desktop Linux Enterprise Server Linux Enterprise Server For Raspberry Pi
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T20:59:17.961Z

Reserved: 2017-12-20T00:00:00.000Z

Link: CVE-2017-17806

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-12-20T23:29:00.377

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-17806

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-11-29T00:00:00Z

Links: CVE-2017-17806 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses