Vulnerability Monitor

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CVE-2011-1923

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.

Security Impact Summary

CVE-2011-1923 is a security vulnerability that . Impacting 1 product from polarssl organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2012, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2012-06-20T17:55:01.433

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:P/I:P/A:N

Access Vector: NETWORK
Access Complexity: HIGH
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

4.9

Impact Score

4.9

Weaknesses

Type: Primary
CWE-310

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	polarssl	polarssl	≤ 0.14.0	Yes
Application	polarssl	polarssl	0.10.0	Yes
Application	polarssl	polarssl	0.10.1	Yes
Application	polarssl	polarssl	0.11.0	Yes
Application	polarssl	polarssl	0.11.1	Yes
Application	polarssl	polarssl	0.12.0	Yes
Application	polarssl	polarssl	0.12.1	Yes
Application	polarssl	polarssl	0.13.1	Yes

References

http://polarssl.org/trac/wiki/SecurityAdvisory201101 Vendor Advisory ([email protected])
http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf ([email protected])
http://www.nessus.org/plugins/index.php?view=single&id=53360 ([email protected])
http://www.securityfocus.com/bid/46670 ([email protected])
http://polarssl.org/trac/wiki/SecurityAdvisory201101 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf (af854a3a-2127-422b-91ae-364da2661108)
http://www.nessus.org/plugins/index.php?view=single&id=53360 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/46670 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For polarssl's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.