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Vulnerability Details : CVE-2018-18445

In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
Publish Date : 2018-10-17 Last Update Date : 2020-10-15
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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)
CWE ID 125

- 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
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-2018-18445

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.10 * * * Version Details Vulnerabilities
5 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
6 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
7 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
8 OS Redhat Enterprise Linux Server 7.6 * * * Version Details Vulnerabilities
9 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
10 OS Redhat Enterprise Linux Server Eus 7.6 * * * Version Details Vulnerabilities
11 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
12 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 4
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

- References For CVE-2018-18445

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681
https://support.f5.com/csp/article/K38456756 CONFIRM
https://usn.ubuntu.com/3847-2/
UBUNTU USN-3847-2
https://usn.ubuntu.com/3847-1/
UBUNTU USN-3847-1
https://access.redhat.com/errata/RHSA-2019:0514
REDHAT RHSA-2019:0514
https://access.redhat.com/errata/RHSA-2019:0512
REDHAT RHSA-2019:0512
https://usn.ubuntu.com/3847-3/
UBUNTU USN-3847-3
https://usn.ubuntu.com/3832-1/
UBUNTU USN-3832-1
https://usn.ubuntu.com/3835-1/
UBUNTU USN-3835-1
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75
https://bugs.chromium.org/p/project-zero/issues/detail?id=1686
https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13

- Metasploit Modules Related To CVE-2018-18445

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


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