The silc_asn1_encoder function in lib/silcasn1/silcasn1_encode.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.8 allows remote attackers to overwrite a stack location and possibly execute arbitrary code via a crafted OID value, related to incorrect use of a %lu format string.
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_toolkit | Silcnet | * | 1.1.6 (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 | 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://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
- http://secunia.com/advisories/36614
- http://secunia.com/advisories/36625
- http://silcnet.org/docs/changelog/SILC%20Toolkit%201.1.8
- 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.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/36192
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53477
- http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
- http://secunia.com/advisories/36614
- http://secunia.com/advisories/36625
- http://silcnet.org/docs/changelog/SILC%20Toolkit%201.1.8
- 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.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/36192
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53477