CVE-2017-17806

HIGH

Linux Kernel < 3.2.97 - Out-of-Bounds Write

Title source: rule
STIX 2.1

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.

References (21)

Core 21
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3617-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3619-2/
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4082
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3617-3/
Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html
Issue Tracking, Patch, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3583-2/
Issue Tracking, Patch, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3632-1/
Issue Tracking, Patch, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/102293
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2948
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3583-1/
Issue Tracking, Release Notes x_refsource_confirm
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8
Issue Tracking, Patch, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-4073
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3617-2/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3619-1/
Issue Tracking, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 1.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (13)
canonical/ubuntu_linux 12.04
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
debian/debian_linux 8.0
debian/debian_linux 9.0
linux/linux_kernel < 3.2.97
opensuse/leap 42.2
opensuse_project/leap 42.3
suse/linux_enterprise_desktop 12 sp2 (2 CPE variants)
... and 3 more
Published Dec 20, 2017
Tracked Since Feb 18, 2026