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Vulnerability Details : CVE-2018-12232

In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.
Publish Date : 2018-06-12 Last Update Date : 2018-08-29
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- CVSS Scores & Vulnerability Types

CVSS Score
7.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
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

- Products Affected By CVE-2018-12232

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 4.17.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2018-12232

https://usn.ubuntu.com/3752-2/
UBUNTU USN-3752-2
https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14
https://lkml.org/lkml/2018/6/5/14
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14
http://www.securityfocus.com/bid/104453
BID 104453
https://patchwork.ozlabs.org/patch/926519/
https://usn.ubuntu.com/3752-3/
UBUNTU USN-3752-3
https://usn.ubuntu.com/3752-1/
UBUNTU USN-3752-1

- Metasploit Modules Related To CVE-2018-12232

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


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