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CVE-2015-3216

Date: July 7, 2015

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 attackers 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.

Severity Score

Related Resources (13)

http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html
https://bugzilla.redhat.com/show_bug.cgi?id=1225994
http://www.securityfocus.com/bid/75219
http://rhn.redhat.com/errata/RHSA-2016-2957.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html
http://www.securitytracker.com/id/1032587
https://access.redhat.com/security/cve/CVE-2015-3216
https://nvd.nist.gov/vuln/detail/CVE-2015-3216
http://rhn.redhat.com/errata/RHSA-2015-1115.html
https://www.mend.io/vulnerability-database/CVE-2015-3216

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

Race Conditions

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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