Issued:
2014-10-13
Updated:
2014-10-13

RHBA-2014:1584 - hmaccalc bug fix update

Synopsis

hmaccalc bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated hmaccalc packages that fix one bug are now available for Red Hat Enterprise Linux 6.

Description

The hmaccalc packages contain tools to calculate HMAC (Hash-based Message Authentication Code) values for files. The names and interfaces were designed to mimic those of the sha1sum, sha256sum, sha384sum and sha512sum tools provided by the coreutils package.

This update fixes the following bug:

  • The .hmac files are used to check the kernel image at the boot time; if the check fails, the boot process is expected to be halted. Previously, the hmaccalc utility did not flag empty .hmac files as an error, allowing the system to boot even if the boot was supposed to fail. With this update, a patch has been provided to address this bug. As a result, the system is no longer allowed to boot in the described scenario. (BZ#1016706)

Users of hmaccalc are advised to upgrade to these updated packages, which fix this bug.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • hmaccalc-0.9.12-2.el6.i686.rpm
  • hmaccalc-debuginfo-0.9.12-2.el6.s390x.rpm
  • hmaccalc-0.9.12-2.el6.s390x.rpm
  • hmaccalc-debuginfo-0.9.12-2.el6.ppc64.rpm
  • hmaccalc-0.9.12-2.el6.ppc64.rpm
  • hmaccalc-debuginfo-0.9.12-2.el6.i686.rpm
  • hmaccalc-0.9.12-2.el6.x86_64.rpm
  • hmaccalc-0.9.12-2.el6.src.rpm
  • hmaccalc-debuginfo-0.9.12-2.el6.x86_64.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information