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PRIOn knowledge basePRION:CVE-2019-8460HistoryAug 26, 2019 - 8:15 p.m.
Code injection
2019-08-2620:15:00
PRIOn knowledge base
www.prio-n.com
32
0.003 Low
EPSS
Percentile
68.3%
OpenBSD 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.
References
ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig
github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f
research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/
security.netapp.com/advisory/ntap-20190905-0001/
us-cert.cisa.gov/ics/advisories/icsa-19-253-03
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