CVE-2009-0789
UnknownEPSS 2.59%
Last modified
CVE-2009-0789 is a vulnerability of currently unknown severity. OpenSSL before 0.9.8k on WIN64 and certain other platforms does not properly handle a malformed ASN.1 structure, which allows remote attackers to cause a denial of service (invalid memory access and application crash) by placing this structure in the public key of a certificate, as demonstrated by an RSA public key.. EPSS estimates a 2.59% chance of exploitation in the next 30 days.
Description
OpenSSL before 0.9.8k on WIN64 and certain other platforms does not properly handle a malformed ASN.1 structure, which allows remote attackers to cause a denial of service (invalid memory access and application crash) by placing this structure in the public key of a certificate, as demonstrated by an RSA public key.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openssl | Openssl | <= 0.9.8j |
| Openssl | Openssl | 0.9.1c |
| Openssl | Openssl | 0.9.2b |
| Openssl | Openssl | 0.9.3 |
| Openssl | Openssl | 0.9.3a |
| Openssl | Openssl | 0.9.4 |
| Openssl | Openssl | 0.9.5 |
| Openssl | Openssl | 0.9.5a |
| Openssl | Openssl | 0.9.6 |
| Openssl | Openssl | 0.9.6a |
| Openssl | Openssl | 0.9.6b |
| Openssl | Openssl | 0.9.6c |
| Openssl | Openssl | 0.9.6d |
| Openssl | Openssl | 0.9.6e |
| Openssl | Openssl | 0.9.6f |
| Openssl | Openssl | 0.9.6g |
| Openssl | Openssl | 0.9.6h |
| Openssl | Openssl | 0.9.6i |
| Openssl | Openssl | 0.9.6j |
| Openssl | Openssl | 0.9.6k |
| Openssl | Openssl | 0.9.6l |
| Openssl | Openssl | 0.9.6m |
| Openssl | Openssl | 0.9.7 |
| Openssl | Openssl | 0.9.7a |
| Openssl | Openssl | 0.9.7b |
| Openssl | Openssl | 0.9.7c |
| Openssl | Openssl | 0.9.7d |
| Openssl | Openssl | 0.9.7e |
| Openssl | Openssl | 0.9.7f |
| Openssl | Openssl | 0.9.7g |
| Openssl | Openssl | 0.9.7h |
| Openssl | Openssl | 0.9.7i |
| Openssl | Openssl | 0.9.7j |
| Openssl | Openssl | 0.9.7k |
| Openssl | Openssl | 0.9.7l |
| Openssl | Openssl | 0.9.7m |
| Openssl | Openssl | 0.9.8 |
| Openssl | Openssl | 0.9.8a |
| Openssl | Openssl | 0.9.8b |
| Openssl | Openssl | 0.9.8c |
| Openssl | Openssl | 0.9.8d |
| Openssl | Openssl | 0.9.8e |
| Openssl | Openssl | 0.9.8f |
| Openssl | Openssl | 0.9.8g |
| Openssl | Openssl | 0.9.8h |
| Openssl | Openssl | 0.9.8i |
References
- http://secunia.com/advisories/34411Vendor Advisory
- http://secunia.com/advisories/34460Vendor Advisory
- http://secunia.com/advisories/35380Vendor Advisory
- http://secunia.com/advisories/35729Vendor Advisory
- http://secunia.com/advisories/36701Vendor Advisory
- http://secunia.com/advisories/42724Vendor Advisory
- http://secunia.com/advisories/42733Vendor Advisory
- http://www.openssl.org/news/secadv_20090325.txtVendor Advisory
- http://www.vupen.com/english/advisories/2009/0850Vendor Advisory
- http://www.vupen.com/english/advisories/2009/1020Vendor Advisory
- http://www.vupen.com/english/advisories/2009/1175Vendor Advisory
- http://www.vupen.com/english/advisories/2009/1548Vendor Advisory
- http://secunia.com/advisories/34411Vendor Advisory
- http://secunia.com/advisories/34460Vendor Advisory
- http://secunia.com/advisories/35380Vendor Advisory
- http://secunia.com/advisories/35729Vendor Advisory
- http://secunia.com/advisories/36701Vendor Advisory
- http://secunia.com/advisories/42724Vendor Advisory
- http://secunia.com/advisories/42733Vendor Advisory
- http://www.openssl.org/news/secadv_20090325.txtVendor Advisory
- http://www.vupen.com/english/advisories/2009/0850Vendor Advisory
- http://www.vupen.com/english/advisories/2009/1020Vendor Advisory
- http://www.vupen.com/english/advisories/2009/1175Vendor Advisory
- http://www.vupen.com/english/advisories/2009/1548Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2009-0789?
OpenSSL before 0.9.8k on WIN64 and certain other platforms does not properly handle a malformed ASN.1 structure, which allows remote attackers to cause a denial of service (invalid memory access and application crash) by placing this structure in the public key of a certificate, as demonstrated by an RSA public key.
How severe is CVE-2009-0789?
Severity scoring for CVE-2009-0789 is pending analysis. The EPSS model estimates a 2.59% probability of exploitation in the next 30 days.
How do I fix CVE-2009-0789?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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