High severity7.8NVD Advisory· Published Dec 20, 2017· Updated Jun 17, 2026

CVE-2017-17806

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

111

Canonical/Ubuntu Linux4 versions
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*+ 3 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <3.2.97
- (no CPE)range: <4.14.8
OpenSUSE/Leap2 versions
cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse_project:leap:42.3:*:*:*:*:*:*:*
SUSE S.A./Linux Enterprise Desktop2 versions
cpe:2.3:o:suse:linux_enterprise_desktop:12:sp2:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:suse:linux_enterprise_desktop:12:sp2:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_desktop:12:sp3:*:*:*:*:*:*
SUSE S.A./Linux Enterprise Server4 versions
cpe:2.3:o:suse:linux_enterprise_server:11:extra:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:suse:linux_enterprise_server:11:extra:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:12:sp2:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:12:sp3:*:*:*:*:*:*
SUSE S.A./Linux Enterprise Server For Raspberry Pi
cpe:2.3:o:suse:linux_enterprise_server_for_raspberry_pi:12:sp2:*:*:*:*:*:*
osv-coords94 versions
pkg:rpm/suse/kernel-bigmem&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-bigmem&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-bigsmp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2012 pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3 pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-ppc64&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-ppc64&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP2 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP2 pkg:rpm/suse/kernel-rt_trace&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2011%20SP4 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP2 pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSS pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4 pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kernel-xen&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_25&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_25&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1 pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_25&distro=SUSE%20OpenStack%20Cloud%206 pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_17&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012 pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_7&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3 pkg:rpm/suse/kgraft-patch-SLE12_Update_31&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS
< 3.0.101-108.21.1+ 93 more
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.61-52.119.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 3.0.101-108.21.2
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.61-52.119.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 4.4.104-24.1
- (no CPE)range: < 3.0.101.rt130-69.14.1
- (no CPE)range: < 4.4.104-24.1
- (no CPE)range: < 3.0.101.rt130-69.14.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.61-52.119.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 3.0.101.rt130-69.14.1
- (no CPE)range: < 4.4.104-24.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.61-52.119.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 4.4.103-92.56.1
- (no CPE)range: < 4.4.103-6.38.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 3.0.101.rt130-69.14.1
- (no CPE)range: < 4.4.104-24.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-0.47.106.11.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 3.12.61-52.119.1
- (no CPE)range: < 3.0.101-108.21.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 3.12.74-60.64.82.1
- (no CPE)range: < 1-2.9.1
- (no CPE)range: < 1-2.9.1
- (no CPE)range: < 1-2.9.1
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 1-4.5.1
- (no CPE)range: < 1-1.7.1

Patches

Vulnerability mechanics

References

git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatch
lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.htmlnvdIssue TrackingPatchThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.htmlnvdIssue TrackingPatchThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.htmlnvdIssue TrackingPatchThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.htmlnvdIssue TrackingPatchThird Party Advisory
github.com/torvalds/linux/commit/af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1nvdPatch
lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.htmlnvdIssue TrackingThird Party Advisory
www.securityfocus.com/bid/102293nvdThird Party AdvisoryVDB Entry
access.redhat.com/errata/RHSA-2018:2948nvdThird Party Advisory
lists.debian.org/debian-lts-announce/2018/01/msg00004.htmlnvdThird Party Advisory
usn.ubuntu.com/3583-1/nvdThird Party Advisory
usn.ubuntu.com/3583-2/nvdThird Party Advisory
usn.ubuntu.com/3617-1/nvdThird Party Advisory
usn.ubuntu.com/3617-2/nvdThird Party Advisory
usn.ubuntu.com/3617-3/nvdThird Party Advisory
usn.ubuntu.com/3619-1/nvdThird Party Advisory
usn.ubuntu.com/3619-2/nvdThird Party Advisory
usn.ubuntu.com/3632-1/nvdThird Party Advisory
www.debian.org/security/2017/dsa-4073nvdThird Party Advisory
www.debian.org/security/2018/dsa-4082nvdThird Party Advisory
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8nvdIssue TrackingRelease Notes

News mentions

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cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000