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SUSE: CVE-2018-12232: SUSE Linux Security Advisory

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SUSE: CVE-2018-12232: SUSE Linux Security Advisory

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
06/12/2018
Created
03/19/2019
Added
01/18/2019
Modified
02/04/2022

Description

In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.

Solution(s)

  • suse-upgrade-cluster-md-kmp-default
  • suse-upgrade-dlm-kmp-default
  • suse-upgrade-gfs2-kmp-default
  • suse-upgrade-kernel-default
  • suse-upgrade-kernel-default-extra
  • suse-upgrade-kernel-docs
  • suse-upgrade-kernel-obs-build
  • suse-upgrade-ocfs2-kmp-default

References

  • SUSE-SU-2019:0150-1
  • SUSE-SU-2019:0196-1
  • SUSE-SU-2019:0222-1
  • SUSE-SU-2019:0224-1
  • SUSE-SU-2019:0740-1
  • USN-3752-1
  • USN-3752-2
  • USN-3752-3
  • CVE-2018-12232
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