{"schemaVersion":3,"id":"CVE-2011-1923","aliases":[],"status":"published","duplicateOf":null,"title":null,"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.","dates":{"published":"2012-06-20T17:00:00.000Z","modified":"2024-08-06T22:46:00.304Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":4,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:H/Au:N/C:P/I:P/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4,"severity":"medium","vector":"AV:N/AC:H/Au:N/C:P/I:P/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01308,"percentile":0.702,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01308},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01308,"percentile":0.702}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01308,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01308,"percentile":0.702}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-310","name":"Cryptographic Issues","description":"Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.","type":"category","status":"Draft","abstraction":null,"likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/310.html"}],"affected":[{"vendor":"polarssl","product":"polarssl","name":"polarssl","label":"polarssl","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 0.14.0","noFixRecorded":false,"fixedIn":null},{"text":"0.10.0","noFixRecorded":false,"fixedIn":null},{"text":"0.10.1","noFixRecorded":false,"fixedIn":null},{"text":"0.11.0","noFixRecorded":false,"fixedIn":null},{"text":"0.11.1","noFixRecorded":false,"fixedIn":null},{"text":"0.12.0","noFixRecorded":false,"fixedIn":null},{"text":"0.12.1","noFixRecorded":false,"fixedIn":null},{"text":"0.13.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 0.14.0 | 0.10.0 | 0.10.1 | 0.11.0 | 0.11.1 | 0.12.0 | 0.12.1 | 0.13.1","eol":null,"hubHref":"/vendor/polarssl/polarssl"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf","label":"www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf","hostname":"www.cl.cam.ac.uk","tags":["X Refsource MISC"]},{"url":"http://polarssl.org/trac/wiki/SecurityAdvisory201101","label":"polarssl.org/trac/wiki/SecurityAdvisory201101","hostname":"polarssl.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"http://www.nessus.org/plugins/index.php?view=single&id=53360","label":"www.nessus.org/plugins/index.php?view=single&id=53360","hostname":"www.nessus.org","tags":["X Refsource MISC"]},{"url":"http://www.securityfocus.com/bid/46670","label":"www.securityfocus.com/bid/46670","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2012-06-20T17:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-06T22:46:00.304Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":16,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T23:55:56.519Z","stale":false,"partial":false}}