Vulnerability Description
The Diffie-Hellman key-exchange implementation in dhm.c in PolarSSL before 0.14.2 does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-5095.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Polarssl | Polarssl | <= 0.14.0 |
Related Weaknesses (CWE)
References
- http://polarssl.org/trac/wiki/SecurityAdvisory201101Vendor Advisory
- http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf
- http://www.nessus.org/plugins/index.php?view=single&id=53360
- http://www.securityfocus.com/bid/46670
- http://polarssl.org/trac/wiki/SecurityAdvisory201101Vendor Advisory
- http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf
- http://www.nessus.org/plugins/index.php?view=single&id=53360
- http://www.securityfocus.com/bid/46670
FAQ
What is CVE-2011-1923?
CVE-2011-1923 is a vulnerability with a CVSS score of 4.0 (MEDIUM). The Diffie-Hellman key-exchange implementation in dhm.c in PolarSSL before 0.14.2 does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the sha...
How severe is CVE-2011-1923?
CVE-2011-1923 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1923?
Check the references section above for vendor advisories and patch information. Affected products include: Polarssl Polarssl.