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4.3
CVSSv2

CVE-2015-3216

Published: 07/07/2015 Updated: 05/01/2018
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

Race condition in a certain Red Hat patch to the PRNG lock implementation in the ssleay_rand_bytes function in OpenSSL, as distributed in openssl-1.0.1e-25.el7 in Red Hat Enterprise Linux (RHEL) 7 and other products, allows remote malicious users to cause a denial of service (application crash) by establishing many TLS sessions to a multithreaded server, leading to use of a negative value for a certain length field.

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redhat enterprise linux 7.0

openssl openssl 1.0.1e-25.el7

Vendor Advisories

Red Hat: Important: Red Hat JBoss Core Services Apache HTTP 2.4.23 Release
Synopsis Important: Red Hat JBoss Core Services Apache HTTP 2423 Release Type/Severity Security Advisory: Important Topic Red Hat JBoss Core Services httpd 2423 is now available from the Red Hat Customer Portal for Solaris and Microsoft Windows systemsRed Hat Product Security has rated this release as ...
Amazon Linux AMI: ALAS-2015-550
LOGJAM: A flaw was found in the way the TLS protocol composes the Diffie-Hellman exchange (for both export and non-export grade cipher suites) An attacker could use this flaw to downgrade a DHE connection to use export-grade key sizes, which could then be broken by sufficient pre-computation This can lead to a passive man-in-the-middle attack in ...

References

CWE-189CWE-362https://bugzilla.redhat.com/show_bug.cgi?id=1225994http://www.securityfocus.com/bid/75219http://www.securitytracker.com/id/1032587http://rhn.redhat.com/errata/RHSA-2015-1115.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.htmlhttp://rhn.redhat.com/errata/RHSA-2016-2957.htmlhttps://access.redhat.com/errata/RHSA-2016:2957https://nvd.nist.govhttps://alas.aws.amazon.com/ALAS-2015-550.html
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