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OpenSSL Multiple Vulnerabilities -19 Jun16 (Linux)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
This host is running OpenSSL and is prone to multiple vulnerabilities.
Insight
Insight
Multiple flaws are due to: 1. Incorrectly using of pointer arithmetic for heap-buffer boundary checks which might allow remote attackers to cause a denial of service or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c. 2. Improperly use of constant-time operations in crypto/dsa/dsa_oss.c which allow local users to breach the DSA private key.
Affected Software
Affected Software
OpenSSL 1.0.2h and previous versions.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
For the undefined pointer arithmetic vulnerability, there is a fix available for OpenSSL 1.0.2 and OpenSSL 1.0.1. To prevent DSA private key breach, a fix is available, too.