Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Red Hat Enterprise Linux 7: RHSA-2018:0849 Low: gcc RDRAND Security Fix

red hat
Calendar Grey April 10, 2018
Scroller Redhat
Urgent Security Notice for gcc within Red Hat: resolves faulty functionality for RDRAND/RDSEED functions, categorized with low severity.
An update for gcc is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.
Security Fix(es):
* gcc: GCC generates incorrect code for RDRAND/RDSEED intrinsics (CVE-2017-11671)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux low severity security impact gcc code fix RDRAND issue

References

https://access.redhat.com/security/cve/CVE-2017-11671 https://access.redhat.com/security/updates/classification#low https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.5_release_notes/index.html

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: gcc-4.8.5-28.el7.src.rpm
x86_64: cpp-4.8.5-28.el7.x86_64.rpm gcc-4.8.5-28.el7.x86_64.rpm gcc-base-debuginfo-4.8.5-28.el7.i686.rpm gcc-base-debuginfo-4.8.5-28.el7.x86_64.rpm gcc-debuginfo-4.8.5-28.el7.i686.rpm gcc-debuginfo-4.8.5-28.el7.x86_64.rpm libatomic-4.8.5-28.el7.i686.rpm libatomic-4.8.5-28.el7.x86_64.rpm libgcc-4.8.5-28.el7.i686.rpm libgcc-4.8.5-28.el7.x86_64.rpm libgfortran-4.8.5-28.el7.i686.rpm libgfortran-4.8.5-28.el7.x86_64.rpm libgomp-4.8.5-28.el7.i686.rpm libgomp-4.8.5-28.el7.x86_64.rpm libitm-4.8.5-28.el7.i686.rpm libitm-4.8.5-28.el7.x86_64.rpm libquadmath-4.8.5-28.el7.i686.rpm libquadmath-4.8.5-28.el7.x86_64.rpm libstdc++-4.8.5-28.el7.i686.rpm libstdc++-4.8.5-28.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: gcc-base-debuginfo-4.8.5-28.el7.i686.rpm gcc-base-debuginfo-4.8.5-28.el7.x86_64.rpm gcc-c++-4.8.5-28.el7.x86_64.rpm gcc-debuginfo-4.8.5-28.el7.i686.rpm gcc-debuginfo-4.8.5-28.el7.x86_64.rpm gcc-gfortran-4.8.5-28.el7.x86_64.rpm gcc-gnat-4.8.5-28.el7.x86_64.rpm gcc-go-4.8.5-28.el7.x86_64.rpm gcc-objc++-4.8.5-28.el7.x86_64.rpm gcc-objc-4.8.5-28.el7.x86_64.rpm gcc-plugin-devel-4.8.5-28.el7.x86_64.rpm libasan-4.8.5-28.el7.i686.rpm libasan-4.8.5-28.el7.x86_64.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:0849-01
Product: Red Hat Enterprise Linux
Advisory URL:
Issue date: 2018-04-10

Topic

An update for gcc is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux low severity security impact gcc code fix RDRAND issue

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

Bugs Fixed

1465510 - gcc and gcc-libraries debuginfo clash on aarch64

1475733 - CVE-2017-11671 gcc: GCC generates incorrect code for RDRAND/RDSEED intrinsics

1502794 - Backport a few wrong-code fixes

1508968 - Need to rebuild rpm in order to remove static relocations not known to older linkers1529981 - gcc: incorrect CFI information on i386 with -fstack-clash-protection

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.