Dovecot IMAP/POP3 server dovecot.index.cache buffer overflow
| dovecot-indexcache-bo (30433) |  High Risk |
Description:
Dovecot IMAP/POP3 server is vulnerable to an off-by-one buffer overflow, caused by improper bounds checking by the dovecot.index.cache file. By sending specially-crafted e-mails, a remote attacker could overflow a buffer and cause the server to crash or possibly execute arbitrary code on the system, if mmap is disabled.
*CVSS:
| Base Score: | 5.6 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Dovecot IMAP/POP3 server (1.0rc15 or later), as listed in Dovecot News Advisory dated Sun Nov 19 00:19:01 UTC 2006. See References.
References:
- BugTraq Mailing List, Sat Nov 18 2006 - 18:39:23 CST : Dovecot IMAP/POP3 server: Off-by-one buffer overflow.
- Dovecot News, Sun Nov 19 00:19:01 UTC 2006: [Dovecot-news] 1.0.rc15 released.
- BID-21183: Dovecot IMAP Server Mapped Pages Off-By-One Buffer Overflow Vulnerability
- CVE-2006-5973: Off-by-one buffer overflow in Dovecot 1.0test53 through 1.0.rc14, and possibly other versions, when index files are used and mmap_disable is set to yes
- SA23007: Dovecot Cache File Off-By-One Vulnerability
- SECTRACK ID: 1017288: Dovecot POP3/IMAP Cache File Buffer Overflow May Let Remote Users Execute Arbitrary Code
- SUSE-SA:2006:073: mono tmpfile race problem
- USN-387-1: Dovecot vulnerability
- VUPEN/ADV-2006-4614: Dovecot Cache File file_cache_read() Function Remote Off-By-One Vulnerability
Platforms Affected:
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 6.10
- Dovecot Dovecot prior to 1.0rc15
- Novell Linux Desktop 9
- Novell Open Enterprise Server
- Novell Open Enterprise Server
- Novell SLE SDK 10
- SuSE SLES SDK 9
- SUSE SuSE Linux 10.1
- SuSE SuSE SLED 10
- SuSE SuSE SLES 10
Reported:
Nov 18, 2006
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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.