CVE-2019-8460

EPSS 2.2%CWE-1049

Vexday Risk Score

3Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS —EPSS 2.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 ago 2019Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

Produtos afetados

n/a · OpenBSD

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Referências

https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/https://security.netapp.com/advisory/ntap-20190905-0001/https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03