vulnerability
Ubuntu: (Multiple Advisories) (CVE-2017-17806): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Dec 20, 2017 | Feb 24, 2018 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Dec 20, 2017
Added
Feb 24, 2018
Modified
Mar 27, 2026
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.
Solutions
ubuntu-upgrade-linux-image-3-13-0-142-genericubuntu-upgrade-linux-image-3-13-0-142-generic-lpaeubuntu-upgrade-linux-image-3-13-0-142-lowlatencyubuntu-upgrade-linux-image-3-13-0-142-powerpc-e500ubuntu-upgrade-linux-image-3-13-0-142-powerpc-e500mcubuntu-upgrade-linux-image-3-13-0-142-powerpc-smpubuntu-upgrade-linux-image-3-13-0-142-powerpc64-embubuntu-upgrade-linux-image-3-13-0-142-powerpc64-smpubuntu-upgrade-linux-image-4-13-0-1012-gcpubuntu-upgrade-linux-image-4-13-0-1014-azureubuntu-upgrade-linux-image-4-13-0-1016-raspi2ubuntu-upgrade-linux-image-4-13-0-1022-oemubuntu-upgrade-linux-image-4-13-0-38-genericubuntu-upgrade-linux-image-4-13-0-38-generic-lpaeubuntu-upgrade-linux-image-4-13-0-38-lowlatencyubuntu-upgrade-linux-image-4-4-0-1016-awsubuntu-upgrade-linux-image-4-4-0-1020-kvmubuntu-upgrade-linux-image-4-4-0-1054-awsubuntu-upgrade-linux-image-4-4-0-1086-raspi2ubuntu-upgrade-linux-image-4-4-0-1088-snapdragonubuntu-upgrade-linux-image-4-4-0-119-genericubuntu-upgrade-linux-image-4-4-0-119-generic-lpaeubuntu-upgrade-linux-image-4-4-0-119-lowlatencyubuntu-upgrade-linux-image-4-4-0-119-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-119-powerpc-smpubuntu-upgrade-linux-image-4-4-0-119-powerpc64-embubuntu-upgrade-linux-image-4-4-0-119-powerpc64-smpubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-lts-trustyubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-trustyubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-powerpc-e500ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon
References
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