CVE-2019-5611

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.

Affected

FreeBSD

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

4.42% chance of exploitation in the next 30 days, 91st percentile

Published

2019-08-29

Updated

2024-08-04

Proof-of-concept exploits (1)

• http://packetstormsecurity.com/files/154170/FreeBSD-Security-Advisory-FreeBSD-SA-19-22.mb…

Security advisories

• https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc
• https://seclists.org/bugtraq/2019/Aug/33
• https://security.netapp.com/advisory/ntap-20190910-0002

References

• CVE Record
• NVD entry