CVE-2019-5611

Public Exploit

Description

In FreeBSD 12.0-STABLE before r350828, 12.0-RELEASE before 12.0-RELEASE-p10, 11.3-STABLE before r350829, 11.3-RELEASE before 11.3-RELEASE-p3, and 11.2-RELEASE before 11.2-RELEASE-p14, a missing check in the function to arrange data in a chain of mbufs could cause data returned not to be contiguous. Extra checks in the IPv6 stack could catch the error condition and trigger a kernel panic, leading to a remote denial of service.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 4.31% Top 15%
Vendor Advisory FreeBSD.org
Affected: n/a FreeBSD
Published at:
Updated at:

References

Link Tags
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc patch vendor advisory
https://seclists.org/bugtraq/2019/Aug/33 patch mailing list exploit third party advisory
http://packetstormsecurity.com/files/154170/FreeBSD-Security-Advisory-FreeBSD-SA-19-22.mbuf.html patch vdb entry exploit third party advisory
https://security.netapp.com/advisory/ntap-20190910-0002/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-5611?
CVE-2019-5611 has been scored as a high severity vulnerability.
How to fix CVE-2019-5611?
To fix CVE-2019-5611, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-5611 being actively exploited in the wild?
It is possible that CVE-2019-5611 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-5611?
CVE-2019-5611 affects n/a FreeBSD.
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