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Servers and applications

CVE-2019-11478

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…

Severity
High 7.5
Published
19 Jun 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
94% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager
  • From 11.5.2 up to 11.6.4
  • From 12.1.0 up to 12.1.4
  • From 13.1.0 up to 13.1.1
  • From 14.0.0 up to 14.1.0
  • Version 15.0.0
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 11.5.2 up to 11.6.4
  • From 12.1.0 up to 12.1.4
  • From 13.1.0 up to 13.1.1
  • From 14.0.0 up to 14.1.0
  • Version 15.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-11478
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-11478