Informazioni sul CVE-2019-11478
SACK can cause extensive memory use via fragmented resend queue
CWE ID: CWE-770
Base Score (CVSS): N/A
CVE: CVE-2019-11478
Descrizione: Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e.
Vettore di attacco
Punteggio CVSS
Il CVSS è un sistema di valutazione che misura la gravità di una vulnerabilità informatica considerando fattori come l’impatto potenziale, la probabilità di attacco e la facilità di esecuzione.
Riassunto: .
Dettaglio del Vettore
| Metrica | Valore | Significato | Descrizione |
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Riferimenti esterni
- https://www.kb.cert.org/vuls/id/905115
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- http://www.openwall.com/lists/oss-security/2019/07/06/3
- http://www.openwall.com/lists/oss-security/2019/07/06/4
- https://access.redhat.com/errata/RHSA-2019:1699
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- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic
- https://access.redhat.com/security/vulnerabilities/tcpsack
- http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
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- https://security.netapp.com/advisory/ntap-20190625-0001/
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- https://www.us-cert.gov/ics/advisories/icsa-19-253-03
- http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=f070ef2ac66716357066b683fb0baf55f8191a2e
- https://support.f5.com/csp/article/K26618426
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- http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
Prodotti interessati
- Linux – Linux kernel
Relazioni con altri prodotti
Produttore:Linux
Prodotto: Linux Kernel
Anno: 2019
CWE: CWE-770
CVSS: 0.0