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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-12-20T23:00:00

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

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

Link: CVE-2017-17806

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2024-11-21T03:18:42.750

Link: CVE-2017-17806

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2017-17806 - Bugzilla