ssl/s3_pkt.c in OpenSSL before 0.9.8i allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a DTLS ChangeCipherSpec packet that occurs before ClientHello.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssl | Openssl | 0.9.8 (excluding) | 0.9.8i (excluding) |
| Red Hat Enterprise Linux 5 | RedHat | openssl-0:0.9.8e-12.el5 | * |
| Openssl | Ubuntu | dapper | * |
| Openssl | Ubuntu | devel | * |
| Openssl | Ubuntu | hardy | * |
| Openssl | Ubuntu | intrepid | * |
| Openssl | Ubuntu | jaunty | * |
| Openssl | Ubuntu | upstream | * |
Potential Mitigations
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc
- http://cvs.openssl.org/chngview?cn=17369
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://rt.openssl.org/Ticket/Display.html?id=1679\u0026user=guest\u0026pass=guest
- http://secunia.com/advisories/35571
- http://secunia.com/advisories/35685
- http://secunia.com/advisories/35729
- http://secunia.com/advisories/36533
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://www.openwall.com/lists/oss-security/2009/06/02/1
- http://www.redhat.com/support/errata/RHSA-2009-1335.html
- http://www.securityfocus.com/bid/35174
- http://www.ubuntu.com/usn/USN-792-1
- http://www.vupen.com/english/advisories/2010/0528
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50963
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11179
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7469
- https://www.exploit-db.com/exploits/8873
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-009.txt.asc
- http://cvs.openssl.org/chngview?cn=17369
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://rt.openssl.org/Ticket/Display.html?id=1679\u0026user=guest\u0026pass=guest
- http://secunia.com/advisories/35571
- http://secunia.com/advisories/35685
- http://secunia.com/advisories/35729
- http://secunia.com/advisories/36533
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://www.openwall.com/lists/oss-security/2009/06/02/1
- http://www.redhat.com/support/errata/RHSA-2009-1335.html
- http://www.securityfocus.com/bid/35174
- http://www.ubuntu.com/usn/USN-792-1
- http://www.vupen.com/english/advisories/2010/0528
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50963
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11179
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7469
- https://www.exploit-db.com/exploits/8873