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CVE-2015-3216

15
FAUCET Score

CVE-2015-3216 describes a race condition in a Red Hat patch to OpenSSL's PRNG lock implementation, specifically affecting openssl-1.0.1e-25.el7 in Red Hat Enterprise Linux 7 and other related products. This vulnerability allows remote attackers to trigger a denial of service, causing an application crash, by initiating numerous TLS sessions to a multithreaded server. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and a partial impact on availability, with no impact on confidentiality or integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
1.0.1e-25.el7CPE matchmatch criteria
cpe:2.3:a:openssl:openssl:1.0.1e-25.el7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.30%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0430 is in the 87th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: openssl-0:1.0.1e-30.el6_6.11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: openssl-1:1.0.1e-42.ael7b_1.8
View patch
redhatpatch availablevia redhat_api
Product: Text-Only JBCS
View patch
redhatno patchvia redhat_api
Product: Red Hat JBoss Enterprise Web Server 3Fixed in: openssl

Vendor Advisories (1)

redhatCVE-2015-3216Low

openssl: Crash in ssleay_rand_bytes due to locking regression

May 28, 2015

References

lists.opensuse.org / opensuse-security-announce/2015-06/msg00023.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00024.html
lists.opensuse.org / opensuse-security-announce/2015-06/msg00026.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00004.html
lists.opensuse.org / opensuse-security-announce/2015-07/msg00006.html
rhn.redhat.com / errata/RHSA-2015-1115.html
rhn.redhat.com / errata/RHSA-2016-2957.html
bugzilla.redhat.com / show_bug.cgi
securityfocus.com / bid/75219
securitytracker.com / id/1032587