CVE-2015-3216

Enterprise Linux vulnerability

CVSS

4.3

EPSS

4.3%

EPSS pct

90th

Exploited

No known

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.

Affected vendor

Redhat

Affected product

Enterprise Linux

CVSS vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Weakness type (CWE)

CWE-189
CWE-362 — Race Condition

Published

2015-07-07

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 4.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2015-3216

Confirm whether Redhat Enterprise Linux is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-3216.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-3216

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