CVE-2017-17806

HIGH

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

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html

http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html

http://www.securityfocus.com/bid/102293

https://access.redhat.com/errata/RHSA-2018:2948

https://github.com/torvalds/linux/commit/af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1

https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html

https://usn.ubuntu.com/3583-1/

https://usn.ubuntu.com/3583-2/

https://usn.ubuntu.com/3617-1/

https://usn.ubuntu.com/3617-2/

https://usn.ubuntu.com/3617-3/

https://usn.ubuntu.com/3619-1/

https://usn.ubuntu.com/3619-2/

https://usn.ubuntu.com/3632-1/

https://www.debian.org/security/2017/dsa-4073

https://www.debian.org/security/2018/dsa-4082

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8

Details

Source: MITRE

Published: 2017-12-20

Updated: 2019-10-03

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (28 total)

IDNameProductFamilySeverity
124824EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1501)NessusHuawei Local Security Checks
high
124800EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1476)NessusHuawei Local Security Checks
high
119567Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2018-4301)NessusOracle Linux Local Security Checks
high
119566OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0286)NessusOracleVM Local Security Checks
high
119535Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4300)NessusOracle Linux Local Security Checks
high
119534Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4299)NessusOracle Linux Local Security Checks
high
118513RHEL 7 : kernel-alt (RHSA-2018:2948) (Spectre)NessusRed Hat Local Security Checks
high
117541EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1232)NessusHuawei Local Security Checks
high
109316Ubuntu 16.04 LTS : Linux kernel (Azure) vulnerabilities (USN-3632-1)NessusUbuntu Local Security Checks
high
108878Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3619-2)NessusUbuntu Local Security Checks
high
108842Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3619-1)NessusUbuntu Local Security Checks
high
108840Ubuntu 17.10 : linux-raspi2 vulnerabilities (USN-3617-3)NessusUbuntu Local Security Checks
high
108835Ubuntu 16.04 LTS : linux-hwe, linux-gcp, linux-oem vulnerabilities (USN-3617-2)NessusUbuntu Local Security Checks
high
108834Ubuntu 17.10 : linux vulnerabilities (USN-3617-1)NessusUbuntu Local Security Checks
high
107003Ubuntu 14.04 LTS : linux vulnerabilities (USN-3583-1) (Meltdown)NessusUbuntu Local Security Checks
critical
106967SUSE SLES12 Security Update : kernel (SUSE-SU-2018:0525-1) (Spectre)NessusSuSE Local Security Checks
high
106815SUSE SLES12 Security Update : kernel (SUSE-SU-2018:0437-1) (Spectre)NessusSuSE Local Security Checks
high
106406EulerOS 2.0 SP1 : kernel (EulerOS-SA-2018-1031)NessusHuawei Local Security Checks
critical
106167EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1026)NessusHuawei Local Security Checks
high
105704Debian DSA-4082-1 : linux - security update (Meltdown)NessusDebian Local Security Checks
high
105685SUSE SLES11 Security Update : kernel (SUSE-SU-2018:0040-1) (BlueBorne) (KRACK) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
105636openSUSE Security Update : the Linux Kernel (openSUSE-2018-3) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
105622Debian DLA-1232-1 : linux security update (Meltdown)NessusDebian Local Security Checks
high
105597openSUSE Security Update : the Linux Kernel (openSUSE-2018-2) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
105576SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0012-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
105575SUSE SLES11 Security Update : kernel (SUSE-SU-2018:0011-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
105574SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0010-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
105433Debian DSA-4073-1 : linux - security updateNessusDebian Local Security Checks
high