| PROBLEM: | 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. |
| PLATFORM: | Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client) Debian GNU/Linux 4.0 (etch) HP-UX running HP CIFS Server vA.02.01.*, vA.2.03.*, prior to vA.02.03.04 running on HP-UX B.11.11, B.11.23, and B.11.31 |
| DAMAGE: | Execute arbitrary code. |
| SOLUTION: | Upgrade to the appropriate verison. |
| VULNERABILITY ASSESSMENT: |
The risk is MEDIUM. A malicious Samba server could run arbitrary code on a Samba client as the Samba client user. Alternately, a malicious client could run arbitrary code on a Samba server with the permissions of the Samba server. |
| CVSS 2 BASE SCORE: TEMPORAL SCORE: VECTOR: |
5.5 4.3 (AV:N/AC:L/Au:S/C:P/I:P/A:N/E:POC/RL:OF/RC:C) |
| LINKS: | |
| CIAC BULLETIN: | http://www.ciac.org/ciac/bulletins/s-301.shtml |
| ORIGINAL BULLETIN: | https://rhn.redhat.com/errata/RHSA-2008-0290.html |
| ADDITIONAL LINKS: | http://www.debian.org/security/2008/dsa-1590 Visit Hewlett-Packard Subscription Service for: HPSBUX02316 SSRT071495 rev. 1 |
| CVE: | CVE-2008-1105 |
REVISION HISTORY:
06/05/2008 - revised S-301 to add a link to Debian Security Advisory DSA-1590-1
for Debian GNU/Linux 4.0 (etch).
06/27/2008 - revised S-232 to add a link to Hewlett-Packard's Subscription Service
for: HPSBUX02341 SSRT080075 rev. 1 for HP-UX running HP CIFS Server
vA.02.01.*, vA.2.03.*, prior to vA.02.03.04 running on HP-UX B.11.11,
B.11.23, and B.11.31.
[***** Start Red Hat RHSA-2008:0290-7 *****]
| Advisory: | RHSA-2008:0290-7 |
|---|---|
| Type: | Security Advisory |
| Severity: | Critical |
| Issued on: | 2008-05-28 |
| Last updated on: | 2008-05-28 |
| Affected Products: | Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client) |
| OVAL: | com.redhat.rhsa-20080290.xml |
| CVEs (cve.mitre.org): | CVE-2008-1105 |
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.
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® 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® 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.
| Red Hat Enterprise Linux (v. 5 server) | |
| SRPMS: | |
| samba-3.0.28-1.el5_2.1.src.rpm | c8744eed3b3769a88d42ea5e40b6f913 |
| IA-32: | |
| samba-3.0.28-1.el5_2.1.i386.rpm | ff885e0c6bb806e4c776dc11637033f9 |
| samba-client-3.0.28-1.el5_2.1.i386.rpm | d0c0753383c698e8a867e962a1dc6eac |
| samba-common-3.0.28-1.el5_2.1.i386.rpm | aad625501297c2215fc2e92ac7de3883 |
| samba-swat-3.0.28-1.el5_2.1.i386.rpm | 3ed5051cf26776579da9171c1ea06422 |
| IA-64: | |
| samba-3.0.28-1.el5_2.1.ia64.rpm | bffc7c59bf4b4d95c93d8133e1a809c0 |
| samba-client-3.0.28-1.el5_2.1.ia64.rpm | c4409b5b9c1019f3da1ba632c251f8de |
| samba-common-3.0.28-1.el5_2.1.ia64.rpm | d52867fd43964687848e71fffe1ba56f |
| samba-swat-3.0.28-1.el5_2.1.ia64.rpm | dd4acaae5a4b7536732296d0f878f07d |
| PPC: | |
| samba-3.0.28-1.el5_2.1.ppc.rpm | a192b606484547a9ea07c0625dbe00c0 |
| samba-client-3.0.28-1.el5_2.1.ppc.rpm | f57a6af5082cf952d1813cb169c199dc |
| samba-common-3.0.28-1.el5_2.1.ppc.rpm | b367994c453c9e020473572efa594ab6 |
| samba-common-3.0.28-1.el5_2.1.ppc64.rpm | b02df5a8353e945211b1f3c77a3ecd4c |
| samba-swat-3.0.28-1.el5_2.1.ppc.rpm | 776e8cd67a4bdc85d64614c53badfcbd |
| s390x: | |
| samba-3.0.28-1.el5_2.1.s390x.rpm | 71dca4f7a4313504bac85b43fcfd201d |
| samba-client-3.0.28-1.el5_2.1.s390x.rpm | edde80529204f370233bd8b83fdde688 |
| samba-common-3.0.28-1.el5_2.1.s390.rpm | 62fe1fcdc613f81d778559c66f817733 |
| samba-common-3.0.28-1.el5_2.1.s390x.rpm | bdcd4149da834ae6f4380c0baaa94924 |
| samba-swat-3.0.28-1.el5_2.1.s390x.rpm | 20a9a28c2428a1dc12d992992a2b5ba8 |
| x86_64: | |
| samba-3.0.28-1.el5_2.1.x86_64.rpm | 28b93c0ca44a2d5bf4715e376cb029a4 |
| samba-client-3.0.28-1.el5_2.1.x86_64.rpm | b352852eab120e68a912d2b6c7719cb2 |
| samba-common-3.0.28-1.el5_2.1.i386.rpm | aad625501297c2215fc2e92ac7de3883 |
| samba-common-3.0.28-1.el5_2.1.x86_64.rpm | 490e730fe6ec48a1799bb50c983684e0 |
| samba-swat-3.0.28-1.el5_2.1.x86_64.rpm | f7150764465b0f724cbce295d1d06e4b |
| Red Hat Enterprise Linux Desktop (v. 5 client) | |
| SRPMS: | |
| samba-3.0.28-1.el5_2.1.src.rpm | c8744eed3b3769a88d42ea5e40b6f913 |
| IA-32: | |
| samba-3.0.28-1.el5_2.1.i386.rpm | ff885e0c6bb806e4c776dc11637033f9 |
| samba-client-3.0.28-1.el5_2.1.i386.rpm | d0c0753383c698e8a867e962a1dc6eac |
| samba-common-3.0.28-1.el5_2.1.i386.rpm | aad625501297c2215fc2e92ac7de3883 |
| samba-swat-3.0.28-1.el5_2.1.i386.rpm | 3ed5051cf26776579da9171c1ea06422 |
| x86_64: | |
| samba-3.0.28-1.el5_2.1.x86_64.rpm | 28b93c0ca44a2d5bf4715e376cb029a4 |
| samba-client-3.0.28-1.el5_2.1.x86_64.rpm | b352852eab120e68a912d2b6c7719cb2 |
| samba-common-3.0.28-1.el5_2.1.i386.rpm | aad625501297c2215fc2e92ac7de3883 |
| samba-common-3.0.28-1.el5_2.1.x86_64.rpm | 490e730fe6ec48a1799bb50c983684e0 |
| samba-swat-3.0.28-1.el5_2.1.x86_64.rpm | f7150764465b0f724cbce295d1d06e4b |
| (The unlinked packages above are only available from the Red Hat Network) |
|
444637 - Join fails with stricter w2k3 security options set
446724 - CVE-2008-1105 Samba client buffer overflow
447380 - Signing issue: "Server packet had invalid SMB signature" with some Win2K servers
The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/
[***** End Red Hat RHSA-2008:0290-7 *****]
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