CVE-2018-17156 — MEDIUM (5.9)

Q: How severe is CVE-2018-17156?

CVE-2018-17156 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2018-17156?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.

Vulnerability Description

In FreeBSD before 11.2-STABLE(r340268) and 11.2-RELEASE-p5, due to incorrectly accounting for padding on 64-bit platforms, a buffer underwrite could occur when constructing an ICMP reply packet when using a non-standard value for the net.inet.icmp.quotelen sysctl.

CVSS Score

5.9

MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	< 11.2

Related Weaknesses (CWE)

CWE-787

References

http://www.securityfocus.com/bid/106052Third Party AdvisoryVDB Entry
https://security.freebsd.org/advisories/FreeBSD-EN-18:13.icmp.ascExploitMitigationVendor Advisory
http://www.securityfocus.com/bid/106052Third Party AdvisoryVDB Entry
https://security.freebsd.org/advisories/FreeBSD-EN-18:13.icmp.ascExploitMitigationVendor Advisory

FAQ

What is CVE-2018-17156?

CVE-2018-17156 is a vulnerability with a CVSS score of 5.9 (MEDIUM). In FreeBSD before 11.2-STABLE(r340268) and 11.2-RELEASE-p5, due to incorrectly accounting for padding on 64-bit platforms, a buffer underwrite could occur when constructing an ICMP reply packet when u...

How severe is CVE-2018-17156?

CVE-2018-17156 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-17156?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.