Synopsis

Critical: samba security and bug fix update

Type/Severity

Security Advisory: Critical

Topic

Updated samba packages that fix a security issue and two bugs are now
available for Red Hat Enterprise Linux 5.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

Description

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

A heap-based buffer overflow flaw was found in the way Samba clients handle
over-sized packets. If a client connected to a malicious Samba server, it
was possible to execute arbitrary code as the Samba client user. It was
also possible for a remote user to send a specially crafted print request
to a Samba server that could result in the server executing the vulnerable
client code, resulting in arbitrary code execution with the permissions of
the Samba server. (CVE-2008-1105)

Red Hat would like to thank Alin Rad Pop of Secunia Research for
responsibly disclosing this issue.

This update also addresses two issues which prevented Samba from joining
certain Windows domains with tightened security policies, and prevented
certain signed SMB content from working as expected:

• when some Windows(r) 2000-based domain controllers were set to use
  mandatory signing, Samba clients would drop the connection because of an
  error when generating signatures. This presented as a "Server packet had
  invalid SMB signature" error to the Samba client. This update corrects the
  signature generation error.
  
• Samba servers using the "net ads join" command to connect to a Windows
  Server(r) 2003-based domain would fail with "failed to get schannel session
  key from server" and "NT_STATUS_ACCESS_DENIED" errors. This update
  correctly binds to the NETLOGON share, allowing Samba servers to connect to
  the domain properly.
  

Users of Samba are advised to upgrade to these updated packages, which
contain a backported patch to resolve these issues.

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
http://kbase.redhat.com/faq/FAQ_58_10188

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 Server - Extended Update Support 5.2 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 5.2 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 5.2 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 IBM z Systems - Extended Update Support 5.2 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.2 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 444637 - Join fails with stricter w2k3 security options set
• BZ - 446724 - CVE-2008-1105 Samba client buffer overflow
• BZ - 447380 - Signing issue: "Server packet had invalid SMB signature" with some Win2K servers

CVEs

• CVE-2008-1105

References

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

Red Hat Enterprise Linux Server 5

SRPM
samba-3.0.28-1.el5_2.1.src.rpm	SHA-256: be263005d69f34a2a3468b97add7d67039fc6f4050e85b573feaf06bbbdc2c4f
x86_64
samba-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 217b54af2127b3883519c15a89fc9d0c7b19ea346fc5f72e105d36a2790edf5b
samba-client-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 5c00985ab0f9b099599f035d51effa53093b6874d7a669210395275c1bf65363
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-common-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: db93e7e24a37f326ae06fea639e211a237834cf6c9c787fdb6f3598cd7e91047
samba-swat-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 77bf41b5264886630a80a75700f841ccaf28cfbfc3fe44b957cf25c7b9d29969
ia64
samba-3.0.28-1.el5_2.1.ia64.rpm	SHA-256: f6f8655ed01b7a36bbc518525743d29508e63aa8e74d94b75f393e0d7782e8e9
samba-client-3.0.28-1.el5_2.1.ia64.rpm	SHA-256: 057ad3ed9761a277dd7fcafcdd2528d0e707dc424b095d23cc6c4f56dc14c30a
samba-common-3.0.28-1.el5_2.1.ia64.rpm	SHA-256: b29176fdb5ba86a98453d3ad388d4a9a3c63b718953034af5831ebcb4a09b63b
samba-swat-3.0.28-1.el5_2.1.ia64.rpm	SHA-256: 768ac9eaf0c441b16a1cf96ea64c99636d2e870af9198a094f578b471e4865b2
i386
samba-3.0.28-1.el5_2.1.i386.rpm	SHA-256: e7ae3fb25a2928cfc906ea25d5ac5f19122afdf26cc84416f2b21ceb00587d8a
samba-client-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 25f8a5eaf615e8474bf15e1507945058c91ecb3c153c2ef93916765bd9574e76
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-swat-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 03502cdc1e736ab50e0667867ee1e136e2aa560e8f580d9d01aec8a4b193e113

Red Hat Enterprise Linux Workstation 5

SRPM
samba-3.0.28-1.el5_2.1.src.rpm	SHA-256: be263005d69f34a2a3468b97add7d67039fc6f4050e85b573feaf06bbbdc2c4f
x86_64
samba-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 217b54af2127b3883519c15a89fc9d0c7b19ea346fc5f72e105d36a2790edf5b
samba-client-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 5c00985ab0f9b099599f035d51effa53093b6874d7a669210395275c1bf65363
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-common-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: db93e7e24a37f326ae06fea639e211a237834cf6c9c787fdb6f3598cd7e91047
samba-swat-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 77bf41b5264886630a80a75700f841ccaf28cfbfc3fe44b957cf25c7b9d29969
i386
samba-3.0.28-1.el5_2.1.i386.rpm	SHA-256: e7ae3fb25a2928cfc906ea25d5ac5f19122afdf26cc84416f2b21ceb00587d8a
samba-client-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 25f8a5eaf615e8474bf15e1507945058c91ecb3c153c2ef93916765bd9574e76
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-swat-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 03502cdc1e736ab50e0667867ee1e136e2aa560e8f580d9d01aec8a4b193e113

Red Hat Enterprise Linux Desktop 5

SRPM
samba-3.0.28-1.el5_2.1.src.rpm	SHA-256: be263005d69f34a2a3468b97add7d67039fc6f4050e85b573feaf06bbbdc2c4f
x86_64
samba-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 217b54af2127b3883519c15a89fc9d0c7b19ea346fc5f72e105d36a2790edf5b
samba-client-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 5c00985ab0f9b099599f035d51effa53093b6874d7a669210395275c1bf65363
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-common-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: db93e7e24a37f326ae06fea639e211a237834cf6c9c787fdb6f3598cd7e91047
samba-swat-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 77bf41b5264886630a80a75700f841ccaf28cfbfc3fe44b957cf25c7b9d29969
i386
samba-3.0.28-1.el5_2.1.i386.rpm	SHA-256: e7ae3fb25a2928cfc906ea25d5ac5f19122afdf26cc84416f2b21ceb00587d8a
samba-client-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 25f8a5eaf615e8474bf15e1507945058c91ecb3c153c2ef93916765bd9574e76
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-swat-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 03502cdc1e736ab50e0667867ee1e136e2aa560e8f580d9d01aec8a4b193e113

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
samba-3.0.28-1.el5_2.1.src.rpm	SHA-256: be263005d69f34a2a3468b97add7d67039fc6f4050e85b573feaf06bbbdc2c4f
s390x
samba-3.0.28-1.el5_2.1.s390x.rpm	SHA-256: 8fdd0826be1e688821ab269d876acdd1559c9cd5b3e31b8323591a9e618bca72
samba-client-3.0.28-1.el5_2.1.s390x.rpm	SHA-256: efdfb0fa8e36af93139fcd3636dc457672bb2995c14f3a839123b4344a3f598e
samba-common-3.0.28-1.el5_2.1.s390.rpm	SHA-256: 3019c0066dd7a1d4d7c45842d587aba8dc2dde801771b3b596dd7adb52af05ac
samba-common-3.0.28-1.el5_2.1.s390x.rpm	SHA-256: 10bd4d16c6c281dff71e9dcb9d3d61c2b2e8c3e8fa4a41a21c05dd6667a66073
samba-swat-3.0.28-1.el5_2.1.s390x.rpm	SHA-256: c623cb78abcd16f8424c28742075fac40520f56de7d437b76d604c4d061a691f

Red Hat Enterprise Linux for Power, big endian 5

SRPM
samba-3.0.28-1.el5_2.1.src.rpm	SHA-256: be263005d69f34a2a3468b97add7d67039fc6f4050e85b573feaf06bbbdc2c4f
ppc
samba-3.0.28-1.el5_2.1.ppc.rpm	SHA-256: 6fb43aca75e2079168dfbdb03447375cf5d6d3b234866446bd51496a6c39cf1d
samba-client-3.0.28-1.el5_2.1.ppc.rpm	SHA-256: 2624eaa2acd5bcacfdd6e541ea3ded991f2bc5c17b59dfa263ff97076fefbe99
samba-common-3.0.28-1.el5_2.1.ppc.rpm	SHA-256: 7a766ecdf52f06545583f19fc69f13d7e79f38d6db13cf667ed4af820ec0b8e4
samba-common-3.0.28-1.el5_2.1.ppc64.rpm	SHA-256: e9fbffbc57a540321d5fb4b630fdfb3379612f7a52d91d6648b287832a805d01
samba-swat-3.0.28-1.el5_2.1.ppc.rpm	SHA-256: 0fc22024ec21529c425050137b8c1ecb8cbe272db4c3555b1e44738ffcb50191

Red Hat Enterprise Linux Server from RHUI 5

SRPM
samba-3.0.28-1.el5_2.1.src.rpm	SHA-256: be263005d69f34a2a3468b97add7d67039fc6f4050e85b573feaf06bbbdc2c4f
x86_64
samba-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 217b54af2127b3883519c15a89fc9d0c7b19ea346fc5f72e105d36a2790edf5b
samba-client-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 5c00985ab0f9b099599f035d51effa53093b6874d7a669210395275c1bf65363
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-common-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: db93e7e24a37f326ae06fea639e211a237834cf6c9c787fdb6f3598cd7e91047
samba-swat-3.0.28-1.el5_2.1.x86_64.rpm	SHA-256: 77bf41b5264886630a80a75700f841ccaf28cfbfc3fe44b957cf25c7b9d29969
i386
samba-3.0.28-1.el5_2.1.i386.rpm	SHA-256: e7ae3fb25a2928cfc906ea25d5ac5f19122afdf26cc84416f2b21ceb00587d8a
samba-client-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 25f8a5eaf615e8474bf15e1507945058c91ecb3c153c2ef93916765bd9574e76
samba-common-3.0.28-1.el5_2.1.i386.rpm	SHA-256: bab6aa6565e96fbf09a33e873bc1f68aacd733e86d1d9bd2cd9805cbc08a02a2
samba-swat-3.0.28-1.el5_2.1.i386.rpm	SHA-256: 03502cdc1e736ab50e0667867ee1e136e2aa560e8f580d9d01aec8a4b193e113