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Huawei EulerOS: CVE-2018-18559: kernel security update

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Huawei EulerOS: CVE-2018-18559: kernel security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
10/22/2018
Created
03/19/2019
Added
03/11/2019
Modified
01/23/2020

Description

In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.

Solution(s)

  • huawei-euleros-2_0_sp5-upgrade-kernel
  • huawei-euleros-2_0_sp5-upgrade-kernel-debuginfo
  • huawei-euleros-2_0_sp5-upgrade-kernel-debuginfo-common-x86_64
  • huawei-euleros-2_0_sp5-upgrade-kernel-devel
  • huawei-euleros-2_0_sp5-upgrade-kernel-headers
  • huawei-euleros-2_0_sp5-upgrade-kernel-tools
  • huawei-euleros-2_0_sp5-upgrade-kernel-tools-libs
  • huawei-euleros-2_0_sp5-upgrade-perf
  • huawei-euleros-2_0_sp5-upgrade-python-perf

References

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