Multiple format string vulnerabilities in lib/silcclient/command.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and SILC Client 1.1.8 and earlier, allow remote attackers to execute arbitrary code via format string specifiers in a channel name, related to (1) silc_client_command_topic, (2) silc_client_command_kick, (3) silc_client_command_leave, and (4) silc_client_command_users.
Weakness
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Silc_client | Silcnet | * | 1.1.8 (including) |
| Silc_client | Silcnet | 1.1.1 (including) | 1.1.1 (including) |
| Silc_client | Silcnet | 1.1.2 (including) | 1.1.2 (including) |
| Silc_client | Silcnet | 1.1.3 (including) | 1.1.3 (including) |
| Silc_client | Silcnet | 1.1.4 (including) | 1.1.4 (including) |
| Silc_client | Silcnet | 1.1.6 (including) | 1.1.6 (including) |
| Silc_client | Silcnet | 1.1.7 (including) | 1.1.7 (including) |
| Silc_toolkit | Silcnet | * | 1.1.9 (including) |
| Silc_toolkit | Silcnet | 1.1 (including) | 1.1 (including) |
| Silc_toolkit | Silcnet | 1.1.1 (including) | 1.1.1 (including) |
| Silc_toolkit | Silcnet | 1.1.2 (including) | 1.1.2 (including) |
| Silc_toolkit | Silcnet | 1.1.3 (including) | 1.1.3 (including) |
| Silc_toolkit | Silcnet | 1.1.4 (including) | 1.1.4 (including) |
| Silc_toolkit | Silcnet | 1.1.5 (including) | 1.1.5 (including) |
| Silc_toolkit | Silcnet | 1.1.6 (including) | 1.1.6 (including) |
| Silc_toolkit | Silcnet | 1.1.8 (including) | 1.1.8 (including) |
| Silc-toolkit | Ubuntu | dapper | * |
| Silc-toolkit | Ubuntu | hardy | * |
| Silc-toolkit | Ubuntu | intrepid | * |
| Silc-toolkit | Ubuntu | jaunty | * |
| Silc-toolkit | Ubuntu | upstream | * |
Potential Mitigations
Related Attack Patterns
References
- http://secunia.com/advisories/36614
- http://silcnet.org/docs/changelog/SILC%20Toolkit%201.1.10
- http://silcnet.org/general/news/news_toolkit.php
- http://www.debian.org/security/2009/dsa-1879
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:234
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:235
- http://www.openwall.com/lists/oss-security/2009/08/31/5
- http://www.openwall.com/lists/oss-security/2009/09/03/5
- http://www.securityfocus.com/bid/36193
- http://secunia.com/advisories/36614
- http://silcnet.org/docs/changelog/SILC%20Toolkit%201.1.10
- http://silcnet.org/general/news/news_toolkit.php
- http://www.debian.org/security/2009/dsa-1879
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:234
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:235
- http://www.openwall.com/lists/oss-security/2009/08/31/5
- http://www.openwall.com/lists/oss-security/2009/09/03/5
- http://www.securityfocus.com/bid/36193