CVE-2019-8460

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Summary

CVECVE-2019-8460
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-08-26 20:15:00 UTC
Updated2021-08-02 17:15:00 UTC
DescriptionOpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Openbsd Openbsd All All All All

References

ReferenceSourceLinkTags
TCP SACK Security Issue in OpenBSD - CVE-2019-8460 - Check Point Research MISC research.checkpoint.com Exploit, Patch, Press/Media Coverage, Third Party Advisory
Siemens Industrial Products (Update G) | CISA MISC us-cert.cisa.gov
CVE-2019-8460 OpenBSD Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig MISC ftp.openbsd.org Exploit, Vendor Advisory
Received SACK options are managed by a linked list at the TCP socket. · openbsd/src@ed8fdce · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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