Issued:
2011-05-19
Updated:
2011-05-19

RHBA-2011:0597 - cryptsetup-luks bug fix and enhancement update

Synopsis

cryptsetup-luks bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated cryptsetup-luks packages that fix several bugs and add various enhancements are now available for Red Hat Enterprise Linux 6.

Description

The cryptsetup-luks packages provide the utility allowing users to set up encrypted devices with the Device Mapper and the dm-crypt target.

The cryptsetup-luks package has been upgraded to upstream version 1.2.0, which provides a number of bug fixes and enhancements over the previous version. (BZ#658817)

In addition, these updated cryptsetup-luks packages provide fixes for the following bugs:

  • Previously, cryptsetup printed twice the error message notifying the user that the queried device did not exist. With this update, the underlying code was changed and the error message is displayed once. (BZ#612963)

  • Prior to this update, when the user attempted to encrypt a device with the MD4 or MD5 hash algorithm, cryptsetup did not alert the user that the encryption with those algorithms was not supported, had failed, and that therefore the device could not be used. With this update, cryptsetup terminates the process and prints a message advising the user to check if the required encryption method is supported. (BZ#623121)

  • Previously, cryptsetup did not remove keys as soon as possible from device control buffers and therefore did not follow FIPS (Federal Information Processing Standard). With this update, the underlying code has been changed and the keys are removed from the buffers as soon as possible. (BZ#674825)

  • Previously, if the user issued the "cryptsetup luksRemoveKey" command with the "--key-file" parameter, the command removed the key defined in the standard input. With this update, such command removes the key defined in the "--key-file" parameter. (BZ#677634)

  • Prior to this update, when updating with the "yum update" command, the device-mapper-libs package was not updated. This occurred because the previous version of the cryptsetup package was compatible with any version of the package. This update adds the dependency to the cryptsetup package and the device-mapper-libs is updated to provide the compatible device-mapper-libs package. (BZ#692512)

  • Previously, when running in FIPS mode, the salt for PBKDF2 (Password-Based Key Derivation Function) was generated with the /dev/urandom device. According to NIST Special Publication 800-132, all or a portion of the salt must be generated with an approved random number generator. With this update, the salt is generated with the FIPS RNG (Random Number Generator) and the criterion is met. (BZ#693371)

These updated packages provide also the following enhancements:

  • With this update, cryptsetup uses a FIPS certified random number generator for generation of volume keys when running in FIPS mode. (BZ#663869)

  • This update adds the integrity check of the cryptsetup binary and library for FIPS mode. (BZ#663870)

Users are advised to upgrade to these updated cryptsetup-luks packages, which resolve these bugs and add these enhancements.

Solution

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

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259

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 - Retired Extended Life Cycle Support6x86_64
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

  • cryptsetup-luks-1.2.0-3.el6.ppc64.rpm
  • cryptsetup-luks-debuginfo-1.2.0-3.el6.i686.rpm
  • cryptsetup-luks-libs-1.2.0-3.el6.ppc64.rpm
  • cryptsetup-luks-devel-1.2.0-3.el6.i686.rpm
  • cryptsetup-luks-1.2.0-3.el6.x86_64.rpm
  • cryptsetup-luks-1.2.0-3.el6.s390x.rpm
  • cryptsetup-luks-libs-1.2.0-3.el6.ppc.rpm
  • cryptsetup-luks-devel-1.2.0-3.el6.ppc64.rpm
  • cryptsetup-luks-debuginfo-1.2.0-3.el6.s390x.rpm
  • cryptsetup-luks-libs-1.2.0-3.el6.s390x.rpm
  • cryptsetup-luks-debuginfo-1.2.0-3.el6.s390.rpm
  • cryptsetup-luks-1.2.0-3.el6.src.rpm
  • cryptsetup-luks-libs-1.2.0-3.el6.i686.rpm
  • cryptsetup-luks-debuginfo-1.2.0-3.el6.x86_64.rpm
  • cryptsetup-luks-1.2.0-3.el6.i686.rpm
  • cryptsetup-luks-debuginfo-1.2.0-3.el6.ppc64.rpm
  • cryptsetup-luks-devel-1.2.0-3.el6.s390x.rpm
  • cryptsetup-luks-devel-1.2.0-3.el6.s390.rpm
  • cryptsetup-luks-libs-1.2.0-3.el6.x86_64.rpm
  • cryptsetup-luks-devel-1.2.0-3.el6.ppc.rpm
  • cryptsetup-luks-devel-1.2.0-3.el6.x86_64.rpm
  • cryptsetup-luks-debuginfo-1.2.0-3.el6.ppc.rpm
  • cryptsetup-luks-libs-1.2.0-3.el6.s390.rpm

Fixes

CVEs

(none)

References

(none)

Additional information