# CVE-2015-3216: Race condition in a certain Red Hat patch to the PRNG lock implementation in the ssleay\_rand\_bytes function in OpenSSL, as distributed in op

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-07-07 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
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  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-3216

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html
- http://www.securitytracker.com/id/1032587
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html
- http://rhn.redhat.com/errata/RHSA-2015-1115.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.securityfocus.com/bid/75219
- https://bugzilla.redhat.com/show_bug.cgi?id=1225994
- http://rhn.redhat.com/errata/RHSA-2016-2957.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html

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