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Oracle Linux: (CVE-2019-11477) (Multiple Advisories): kernel security, bug fix, and enhancement update

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Oracle Linux: (CVE-2019-11477) (Multiple Advisories): kernel security, bug fix, and enhancement update

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
06/17/2019
Created
06/20/2019
Added
06/18/2019
Modified
07/21/2020

Description

Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). 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 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.

Solution(s)

  • oracle-linux-upgrade-dtrace-modules
  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek
  • oracle-linux-upgrade-kernel-uek-debug
  • oracle-linux-upgrade-kernel-uek-debug-devel
  • oracle-linux-upgrade-kernel-uek-devel
  • oracle-linux-upgrade-kernel-uek-doc
  • oracle-linux-upgrade-kernel-uek-firmware
  • oracle-linux-upgrade-kernel-uek-headers
  • oracle-linux-upgrade-kernel-uek-tools
  • oracle-linux-upgrade-kernel-uek-tools-libs
  • oracle-linux-upgrade-kernel-uek-tools-libs-devel
  • oracle-linux-upgrade-perf
  • oracle-linux-upgrade-python-perf

References

  • ELSA-2019-2029
  • CVE-2019-11477
  • USN-4017-1
  • USN-4017-2

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