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Red Hat: CVE-2017-11671: Low: gcc security, bug fix, and enhancement update (RHSA-2018:0849)

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Red Hat: CVE-2017-11671: Low: gcc security, bug fix, and enhancement update (RHSA-2018:0849)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
07/26/2017
Created
07/25/2018
Added
04/11/2018
Modified
03/03/2021

Description

Under certain circumstances, the ix86_expand_builtin function in i386.c in GNU Compiler Collection (GCC) version 4.6, 4.7, 4.8, 4.9, 5 before 5.5, and 6 before 6.4 will generate instruction sequences that clobber the status flag of the RDRAND and RDSEED intrinsics before it can be read, potentially causing failures of these instructions to go unreported. This could potentially lead to less randomness in random number generation.

Solution(s)

  • redhat-upgrade-cpp
  • redhat-upgrade-gcc
  • redhat-upgrade-gcc-base-debuginfo
  • redhat-upgrade-gcc-c
  • redhat-upgrade-gcc-debuginfo
  • redhat-upgrade-gcc-gfortran
  • redhat-upgrade-gcc-gnat
  • redhat-upgrade-gcc-go
  • redhat-upgrade-gcc-objc
  • redhat-upgrade-gcc-plugin-devel
  • redhat-upgrade-libasan
  • redhat-upgrade-libasan-static
  • redhat-upgrade-libatomic
  • redhat-upgrade-libatomic-static
  • redhat-upgrade-libgcc
  • redhat-upgrade-libgfortran
  • redhat-upgrade-libgfortran-static
  • redhat-upgrade-libgnat
  • redhat-upgrade-libgnat-devel
  • redhat-upgrade-libgnat-static
  • redhat-upgrade-libgo
  • redhat-upgrade-libgo-devel
  • redhat-upgrade-libgo-static
  • redhat-upgrade-libgomp
  • redhat-upgrade-libitm
  • redhat-upgrade-libitm-devel
  • redhat-upgrade-libitm-static
  • redhat-upgrade-libmudflap
  • redhat-upgrade-libmudflap-devel
  • redhat-upgrade-libmudflap-static
  • redhat-upgrade-libobjc
  • redhat-upgrade-libquadmath
  • redhat-upgrade-libquadmath-devel
  • redhat-upgrade-libquadmath-static
  • redhat-upgrade-libstdc
  • redhat-upgrade-libstdc-devel
  • redhat-upgrade-libstdc-docs
  • redhat-upgrade-libstdc-static
  • redhat-upgrade-libtsan
  • redhat-upgrade-libtsan-static

References

  • 100018
  • CVE-2017-11671
  • RHSA-2018:0849

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