Synopsis

Critical: samba3x security update

Type/Severity

Security Advisory: Critical

Topic

Updated samba3x packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having critical
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

Samba is a suite of programs used by machines to share files, printers, and
other information.

A missing array boundary checking flaw was found in the way Samba parsed
the binary representation of Windows security identifiers (SIDs). A
malicious client could send a specially-crafted SMB request to the Samba
server, resulting in arbitrary code execution with the privileges of the
Samba server (smbd). (CVE-2010-3069)

Users of Samba are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, the smb service will be restarted automatically.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 630869 - CVE-2010-3069 Samba: Stack-based buffer overflow by processing specially-crafted SID records

CVEs

• CVE-2010-3069

References

• http://www.redhat.com/security/updates/classification/#critical

Red Hat Enterprise Linux Server 5

SRPM
x86_64
ia64
i386

Red Hat Enterprise Linux Workstation 5

SRPM
x86_64
i386

Red Hat Enterprise Linux Desktop 5

SRPM
x86_64
i386

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
s390x

Red Hat Enterprise Linux for Power, big endian 5

SRPM
ppc

Red Hat Enterprise Linux Server from RHUI 5

SRPM
x86_64
i386