Samba nss_winbind.so.1 library gethostbyname and getipnodebyname buffer overflow
| samba-winbind-bo (32231) |  High Risk |
Description:
The Samba nss_winbind.so.1 library in Sun Solaris' winbind daemon is vulnerable to a buffer overflow, caused by improper bounds checking by the gethostbyname and getipnodebyname functions. By sending a specially-crafted name resolution query, a remote attacker could overflow a buffer and execute arbitrary code on the system.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Samba (3.0.24 or later), available from the Samba Web site. See References.
For SUSE Linux (samba):
Refer to SUSE-SA:2007:016 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- BugTraq Mailing List, Mon Feb 05 2007 - 07:24:30 CST : [SAMBA-SECURITY] CVE-2007-0453: Buffer overrun in nss_winbind.so.1 on Solaris.
- Samba Web site: Samba - opening windows to a wider world.
- BID-22410: Samba NSS host lookup Winbind Multiple Remote Buffer Overflow Vulnerabilities
- CVE-2007-0453: Buffer overflow in the nss_winbind.so.1 library in Samba 3.0.21 through 3.0.23d, as used in the winbindd daemon on Solaris, allows attackers to execute arbitrary code via the (1) gethostbyname and (2) getipnodebyname functions.
- OpenPKG-SA-2007.012: Samba
- SA24043: Samba Winbind Library Buffer Overflow Vulnerabilities
- SECTRACK ID: 1017589: Samba Solaris winbindd Daemon Name Resolution Query Buffer Overflows May Let Remtoe Users Execute Arbitrary Code
- SUSE-SA:2007:016: samba remote denial of service
- VUPEN/ADV-2007-0483: Samba VFS Plugin Format String and Winbind Library Buffer Overflow Vulnerabilities
Platforms Affected:
- Novell Linux Desktop 9
- Novell Linux POS 9
- Novell Open Enterprise Server
- Novell Open Enterprise Server
- Novell OpenSUSE 10.2
- OpenPKG OpenPKG CURRENT
- OpenPKG OpenPKG Enterprise E1.0-SOLID
- Samba Samba 3.0.21
- Samba Samba 3.0.21a
- Samba Samba 3.0.21b
- Samba Samba 3.0.21c
- Samba Samba 3.0.22
- Samba Samba 3.0.23
- Samba Samba 3.0.23a
- Samba Samba 3.0.23b
- Samba Samba 3.0.23c
- Samba Samba 3.0.23d
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.3
- SuSE SuSE SLED 10
- SuSE SuSE SLES 10
- SuSE SuSE SLES 9
Reported:
Feb 05, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.