UpHeron
All vulnerabilities

Servers and applications

CVE-2019-11479

Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. 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 commits…

Severity
High 7.5
Published
19 Jun 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
11.6.5.1, 12.1.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.1, 15.0.1.1
Exploit chance
91% 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 before 11.6.5.1
  • From 12.1.0 before 12.1.5.1
  • From 13.1.0 before 13.1.3.2
  • From 14.0.0 before 14.0.1.1
  • From 14.1.2 before 14.1.2.1
  • From 15.0.0 before 15.0.1.1
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 11.5.2 before 11.6.5.1
  • From 12.1.0 before 12.1.5.1
  • From 13.1.0 before 13.1.3.2
  • From 14.0.0 before 14.0.1.1
  • From 14.1.2 before 14.1.2.1
  • From 15.0.0 before 15.0.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-11479
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-11479