RHSA-2011:0390 - Security Advisory

Topic

An updated rsync package that fixes one security issue is now available for
Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

rsync is a program for synchronizing files over a network.

A memory corruption flaw was found in the way the rsync client processed
malformed file list data. If an rsync client used the "--recursive" and
"--delete" options without the "--owner" option when connecting to a
malicious rsync server, the malicious server could cause rsync on the
client system to crash or, possibly, execute arbitrary code with the
privileges of the user running rsync. (CVE-2011-1097)

Red Hat would like to thank Wayne Davison and Matt McCutchen for reporting
this issue.

Users of rsync should upgrade to this updated package, which contains a
backported patch to resolve this issue.

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 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 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 675036 - CVE-2011-1097 rsync: Incremental file-list corruption due to temporary file_extra_cnt increments

CVEs

• CVE-2011-1097

References

• https://access.redhat.com/security/updates/classification/#moderate