Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an SSL client certificate with a certain invalid ASN.1 encoding.
Weakness
The product calls free() twice on the same memory address.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssl | Openssl | 0.9.6 (including) | 0.9.6 (including) |
| Openssl | Openssl | 0.9.7 (including) | 0.9.7 (including) |
| Red Hat Linux 9 | RedHat | * | |
| Openssl | Ubuntu | dapper | * |
| Openssl | Ubuntu | devel | * |
| Openssl | Ubuntu | edgy | * |
| Openssl | Ubuntu | feisty | * |
| Openssl097 | Ubuntu | dapper | * |
| Openssl097 | Ubuntu | devel | * |
| Openssl097 | Ubuntu | edgy | * |
| Openssl097 | Ubuntu | feisty | * |
Potential Mitigations
References
- http://secunia.com/advisories/22249
- http://www-1.ibm.com/support/docview.wss?uid=swg21247112
- http://www.cert.org/advisories/CA-2003-26.html
- http://www.debian.org/security/2003/dsa-394
- http://www.kb.cert.org/vuls/id/935264
- http://www.redhat.com/support/errata/RHSA-2003-292.html
- http://www.securityfocus.com/bid/8732
- http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
- http://www.vupen.com/english/advisories/2006/3900
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2590
- http://secunia.com/advisories/22249
- http://www-1.ibm.com/support/docview.wss?uid=swg21247112
- http://www.cert.org/advisories/CA-2003-26.html
- http://www.debian.org/security/2003/dsa-394
- http://www.kb.cert.org/vuls/id/935264
- http://www.redhat.com/support/errata/RHSA-2003-292.html
- http://www.securityfocus.com/bid/8732
- http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
- http://www.vupen.com/english/advisories/2006/3900
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2590