CVE-2018-17157: Integer Overflow
First published: Tue Dec 04 2018(Updated: )
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD Kernel | <11.2 | |
| FreeBSD Kernel | =11.2-p4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-17157?
CVE-2018-17157 has a critical severity as it allows unprivileged remote users to execute arbitrary code.
How do I fix CVE-2018-17157?
To fix CVE-2018-17157, upgrade FreeBSD to version 11.2-STABLE(r340854) or 11.2-RELEASE-p5 or later.
Who is affected by CVE-2018-17157?
CVE-2018-17157 affects users running FreeBSD versions prior to 11.2-STABLE(r340854) and 11.2-RELEASE-p5.
What type of vulnerability is CVE-2018-17157?
CVE-2018-17157 is an integer overflow vulnerability related to NFSv4 request handling.
Can CVE-2018-17157 be exploited remotely?
Yes, CVE-2018-17157 can be exploited remotely by unprivileged users accessing the NFS server.
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