RHBA-2011:1585 - Bug Fix Advisory

Topic

An updated cifs-utils package that fixes two bugs is now available for Red Hat
Enterprise Linux 6.

Description

The cifs-utils package contains utilities for mounting and managing CIFS shares.

This update fixes the following bugs:

• Prior to this update, mount.cifs dropped the CAP_DAC_READ_SEARCH flag together

with most of the other capability flags before it performed a mount. As a
result, mounting onto a directory without execute permissions failed if
mount.cifs was installed as a setuid program and the user mount was configured
in the /etc/fstab file. This update reinstates the CAP_DAC_READ_SEARCH flag
before calling mount. Now, mounting no longer fails. (BZ#676439)

• Prior to this update, several mount options were missing from the

mount.cifs(8) man page. With this update, the man page documents all mount
options. (BZ#719363)

All users of cifs-utils are advised to upgrade to this updated cifs-utils
package, which fixes these bugs.

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 676439 - mount attempt returning -EACCES before touching fs-specific code
• BZ - 719363 - undocumented mount.cifs options

CVEs

(none)

References

(none)