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Vulnerability Details : CVE-2018-18559

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.
Publish Date : 2018-10-22 Last Update Date : 2019-05-14
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 362

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:0163: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20190163 unix
RHSA-2019:0188: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20190188 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-2018-18559

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
2 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
3 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
4 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
5 OS Redhat Enterprise Linux Server Eus 7.6 * * * Version Details Vulnerabilities
6 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
7 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities
8 Application Redhat Openshift Container Platform 3.11 * * * Version Details Vulnerabilities
9 Application Redhat Virtualization Host 4.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Server Aus 1
Redhat Enterprise Linux Server Eus 1
Redhat Enterprise Linux Server Tus 1
Redhat Enterprise Linux Workstation 1
Redhat Openshift Container Platform 1
Redhat Virtualization Host 1

- References For CVE-2018-18559

https://access.redhat.com/errata/RHSA-2019:1190
REDHAT RHSA-2019:1190
https://access.redhat.com/errata/RHSA-2019:1170
REDHAT RHSA-2019:1170
https://access.redhat.com/errata/RHBA-2019:0327
REDHAT RHBA-2019:0327
https://access.redhat.com/errata/RHSA-2019:0163
REDHAT RHSA-2019:0163
https://access.redhat.com/errata/RHSA-2019:0188
REDHAT RHSA-2019:0188
https://blogs.securiteam.com/index.php/archives/3731
https://access.redhat.com/errata/RHSA-2019:3967
REDHAT RHSA-2019:3967
https://access.redhat.com/errata/RHSA-2019:4159
REDHAT RHSA-2019:4159
https://access.redhat.com/errata/RHSA-2020:0174
REDHAT RHSA-2020:0174

- Metasploit Modules Related To CVE-2018-18559

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


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