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Vulnerability Details : CVE-2017-17806

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.
Publish Date : 2017-12-20 Last Update Date : 2019-10-03
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 787

- Products Affected By CVE-2017-17806

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
3 OS Opensuse Leap 42.2 * * * Version Details Vulnerabilities
4 OS Opensuse Project Leap 42.3 * * * Version Details Vulnerabilities
5 OS Suse Linux Enterprise Desktop 12 SP3 * * Version Details Vulnerabilities
6 OS Suse Linux Enterprise Desktop 12 SP2 * * Version Details Vulnerabilities
7 OS Suse Linux Enterprise Server 11 Extra * * Version Details Vulnerabilities
8 OS Suse Linux Enterprise Server 11 SP4 * * Version Details Vulnerabilities
9 OS Suse Linux Enterprise Server 12 SP2 * * Version Details Vulnerabilities
10 OS Suse Linux Enterprise Server 12 SP3 * * Version Details Vulnerabilities
11 OS Suse Linux Enterprise Server For Raspberry Pi 12 SP2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Linux Linux Kernel 1
Opensuse Leap 1
Opensuse Project Leap 1
Suse Linux Enterprise Desktop 2
Suse Linux Enterprise Server 4
Suse Linux Enterprise Server For Raspberry Pi 1

- References For CVE-2017-17806

https://usn.ubuntu.com/3617-3/
UBUNTU USN-3617-3
https://usn.ubuntu.com/3632-1/
UBUNTU USN-3632-1
https://usn.ubuntu.com/3619-2/
UBUNTU USN-3619-2
https://usn.ubuntu.com/3619-1/
UBUNTU USN-3619-1
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
SUSE SUSE-SU-2018:0011
https://usn.ubuntu.com/3583-1/
UBUNTU USN-3583-1
https://usn.ubuntu.com/3617-2/
UBUNTU USN-3617-2
http://www.securityfocus.com/bid/102293
BID 102293 Linux Kernel CVE-2017-17806 Stack Based Buffer Overflow Vulnerability Release Date:2018-03-21
https://usn.ubuntu.com/3583-2/
UBUNTU USN-3583-2
https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html
MLIST [debian-lts-announce] 20180107 [SECURITY] [DLA 1232-1] linux security update
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html
SUSE SUSE-SU-2018:0010
https://usn.ubuntu.com/3617-1/
UBUNTU USN-3617-1
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html
SUSE openSUSE-SU-2018:0023
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html
SUSE openSUSE-SU-2018:0022
https://www.debian.org/security/2017/dsa-4073
DEBIAN DSA-4073
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1 CONFIRM
https://www.debian.org/security/2018/dsa-4082
DEBIAN DSA-4082
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html
SUSE SUSE-SU-2018:0012
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 CONFIRM
https://github.com/torvalds/linux/commit/af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1 CONFIRM
https://access.redhat.com/errata/RHSA-2018:2948
REDHAT RHSA-2018:2948

- Metasploit Modules Related To CVE-2017-17806

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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