openssl: Crash in ssleay_rand_bytes due to locking regression
Published Jul 7, 2015
4.3
MEDIUMCVSS 2.0
EPSS 4.30%
Description
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 products
No data.
Configuration 1
- 7.0
No data.
Red Hat Enterprise Linux 6
openssl-0:1.0.1e-30.el6_6.11
Fixed · RHSA-2015:1115
Red Hat Enterprise Linux 7
openssl-1:1.0.1e-42.ael7b_1.8
Fixed · RHSA-2015:1115
Red Hat JBoss Core Services
n/a
Fixed · RHSA-2016:2957
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat JBoss Enterprise Application Platform 6
openssl
Not affected
Red Hat JBoss Enterprise Web Server 2
openssl
Not affected
Red Hat JBoss Enterprise Web Server 3
openssl
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | openssl-0:1.0.1e-30.el6_6.11 | Fixed | RHSA-2015:1115 |
| Red Hat Enterprise Linux 7 | openssl-1:1.0.1e-42.ael7b_1.8 | Fixed | RHSA-2015:1115 |
| Red Hat JBoss Core Services | n/a | Fixed | RHSA-2016:2957 |
| Red Hat Enterprise Linux 5 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 3 | openssl | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of OpenSSL package as shipped with Red Hat Enterprise Linux 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.30% (0.04302) | 90.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.30% (0.04302) | 89.84th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.88% (0.01877) | 81.51th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.17% (0.03166) | 78.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.44% (0.01444) | 79.40th | v4 (v2025.03.14) |
| Feb 16, 2025 | 12.18% (0.12183) | 95.44th | v3 (v2023.03.01) |
| Dec 31, 2024 | 13.54% (0.13543) | 95.59th | v3 (v2023.03.01) |
| Oct 7, 2023 | 12.06% (0.12061) | 94.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 15.54% (0.15539) | 94.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.17% (0.02172) | 80.28th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.72% (0.04720) | 88.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-1115.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-2957.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/75219 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032587 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2015-3216 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1225994 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1227574 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-3216
- https://www.cve.org/CVERecord?id=CVE-2015-3216
Change history (0)
No recorded changes yet.