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Vulnerability Details : CVE-2018-17972

An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel through 4.18.11. It does not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents.
Publish Date : 2018-10-03 Last Update Date : 2019-10-02
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
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)
CWE ID 269

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:0512: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20190512 unix
RHSA-2019:0514: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20190514 unix
RHSA-2019:2473: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20192473 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-17972

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~esm~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.04 ~~lts~~~ Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 18.10 Version Details Vulnerabilities
6 OS Debian Debian Linux 8.0 Version Details Vulnerabilities
7 OS Linux Linux Kernel 4.18.11 Version Details Vulnerabilities
8 OS Redhat Enterprise Linux Desktop 7.0 Version Details Vulnerabilities
9 OS Redhat Enterprise Linux Server 7.0 Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Server 7.6 Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Server Aus 7.6 Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Server Eus 7.6 Version Details Vulnerabilities
13 OS Redhat Enterprise Linux Server Tus 7.6 Version Details Vulnerabilities
14 OS Redhat Enterprise Linux Workstation 7.0 Version Details Vulnerabilities
15 OS Redhat Virtualization 4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 5
Debian Debian Linux 1
Linux Linux Kernel 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 2
Redhat Enterprise Linux Server Aus 1
Redhat Enterprise Linux Server Eus 1
Redhat Enterprise Linux Server Tus 1
Redhat Enterprise Linux Workstation 1
Redhat Virtualization 1

- References For CVE-2018-17972

https://usn.ubuntu.com/3880-2/
UBUNTU USN-3880-2
https://usn.ubuntu.com/3880-1/
UBUNTU USN-3880-1
https://usn.ubuntu.com/3871-5/
UBUNTU USN-3871-5
https://usn.ubuntu.com/3821-2/
UBUNTU USN-3821-2
https://usn.ubuntu.com/3871-4/
UBUNTU USN-3871-4
https://usn.ubuntu.com/3871-3/
UBUNTU USN-3871-3
https://usn.ubuntu.com/3871-1/
UBUNTU USN-3871-1
https://usn.ubuntu.com/3835-1/
UBUNTU USN-3835-1
https://usn.ubuntu.com/3832-1/
UBUNTU USN-3832-1
https://access.redhat.com/errata/RHSA-2019:0514
REDHAT RHSA-2019:0514
https://access.redhat.com/errata/RHSA-2019:0831
REDHAT RHSA-2019:0831
https://access.redhat.com/errata/RHSA-2019:2473
REDHAT RHSA-2019:2473
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
MLIST [debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
MLIST [debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update
https://marc.info/?l=linux-fsdevel&m=153806242024956&w=2
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
MLIST [debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update
https://usn.ubuntu.com/3821-1/
UBUNTU USN-3821-1
https://access.redhat.com/errata/RHSA-2019:0512
REDHAT RHSA-2019:0512
http://www.securityfocus.com/bid/105525
BID 105525 Linux Kernel 'fs/proc/base.c' Local Information Disclosure Vulnerability Release Date:2018-09-27
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
SUSE openSUSE-SU-2019:1407

- Metasploit Modules Related To CVE-2018-17972

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


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