Issued:

2011-12-06

Updated:

2011-12-06

RHEA-2011:1684 - keyutils bug fix and enhancement update

Synopsis

keyutils bug fix and enhancement update

Type/Severity

Product Enhancement Advisory (none)

Topic

Updated keyutils packages that fix one bug and add one enhancement are now available for Red Hat Enterprise Linux 6.

Description

The keyutils package provides utilities to control the Linux kernel key management facility and to provide a mechanism by which the kernel calls up to user space to get a key instantiated.

This update fixes the following bug:

• The keyutils subpackage did not contain a dependency on the keyutils-libs subpackage but rather it contained only an implicit dependency on the libkeyutils.so.[n] shared object files specified as the SONAME variable. As a consequence, the keyutils subpackage could have been updated without applying the newest keyutils libraries, which could have caused keyutils to work incorrectly. To fix this issue, the keyutils spec file has been modified to include an explicit dependency on the version of keyutils-libs that matches the keyutils subpackage. Both subpackages are now updated together. (BZ#730002)

This update also provides the following enhancement:

• Previously, the keyutils subpackages were compiled without the RELRO (read-only relocations) flag. Programs provided by this package and also programs built against the keyutils libraries were thus vulnerable to various attacks based on overwriting the ELF section of a program. To increase the security of keyutils programs and libraries, the keyutils spec file has been modified to use the "-Wl,-z,relro" flags when compiling the packages. As a result, the keyutils subpackages are now provided with partial RELRO protection. (BZ#727280)

Users are advised to upgrade to these updated keyutils packages, which fix this bug and add this enhancement.

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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

Updated Packages

• keyutils-libs-devel-1.4-3.el6.s390.rpm
• keyutils-libs-devel-1.4-3.el6.i686.rpm
• keyutils-libs-devel-1.4-3.el6.x86_64.rpm
• keyutils-1.4-3.el6.src.rpm
• keyutils-1.4-3.el6.i686.rpm
• keyutils-libs-1.4-3.el6.ppc.rpm
• keyutils-debuginfo-1.4-3.el6.x86_64.rpm
• keyutils-debuginfo-1.4-3.el6.ppc.rpm
• keyutils-libs-1.4-3.el6.ppc64.rpm
• keyutils-libs-devel-1.4-3.el6.ppc.rpm
• keyutils-1.4-3.el6.x86_64.rpm
• keyutils-debuginfo-1.4-3.el6.i686.rpm
• keyutils-libs-devel-1.4-3.el6.ppc64.rpm
• keyutils-debuginfo-1.4-3.el6.ppc64.rpm
• keyutils-debuginfo-1.4-3.el6.s390.rpm
• keyutils-1.4-3.el6.ppc64.rpm
• keyutils-debuginfo-1.4-3.el6.s390x.rpm
• keyutils-libs-1.4-3.el6.x86_64.rpm
• keyutils-libs-1.4-3.el6.s390.rpm
• keyutils-libs-1.4-3.el6.s390x.rpm
• keyutils-libs-devel-1.4-3.el6.s390x.rpm
• keyutils-1.4-3.el6.s390x.rpm
• keyutils-libs-1.4-3.el6.i686.rpm

Fixes

• This content is not included.BZ - 727280
• This content is not included.BZ - 730002

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.