OpenSSL 1.0.0 < 1.0.0t Multiple DoS
Medium Nessus Plugin ID 87220
SynopsisThe remote host is affected by multiple denial of service vulnerabilities.
DescriptionAccording to its banner, the remote host is running a version of OpenSSL 1.0.0 prior to 1.0.0t. It is, therefore, affected by the following vulnerabilities :
- A flaw exists in the ASN1_TFLG_COMBINE implementation in file tasn_dec.c related to handling malformed X509_ATTRIBUTE structures. A remote attacker can exploit this to cause a memory leak by triggering a decoding failure in a PKCS#7 or CMS application, resulting in a denial of service. (CVE-2015-3195)
- A race condition exists in s3_clnt.c that is triggered when PSK identity hints are incorrectly updated in the parent SSL_CTX structure when they are received by a multi-threaded client. A remote attacker can exploit this, via a crafted ServerKeyExchange message, to cause a double-free memory error, resulting in a denial of service. (CVE-2015-3196)
SolutionUpgrade to OpenSSL version 1.0.0t or later.