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Red Hat: CVE-2019-3900: CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS (Multiple Advisories)

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Red Hat: CVE-2019-3900: CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
04/25/2019
Created
07/31/2019
Added
07/31/2019
Modified
11/27/2024

Description

An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2019-3900
  • RHSA-2019:2029
  • RHSA-2019:2043
  • RHSA-2019:3220
  • RHSA-2019:3309
  • RHSA-2019:3517
  • RHSA-2019:3967
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