CVE-2015-3216

Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 07 Jul 2015, 10:00
Last modified:06 Aug 2024, 05:39

Vulnerability Summary

Overall Risk (default)
low
18/100
CVSS Score
4.3 MEDIUM
v2.0 (nvd)
EPSS Score
1.56% LOW
2% probability -0.72%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

07 Jul 2015, 10:00
Published
Vulnerability first disclosed
06 Aug 2024, 05:39
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 1.56%• Percentile: 82%

Techniques & Countermeasures

  • CWE-189•Numeric Errors

    Weaknesses in this category are related to improper calculation or conversion of numbers.

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • Unknown•OpenSSL

    1.0.1e-25.el7

  • redhat•enterprise_linux

    7.0

References (10)