Denial of Service (DoS) Affecting openssl package, versions [,1.0.1u)[1.0.2, 1.0.2i)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
46.58% (98th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-OPENSSL-2318585
  • published14 Dec 2021
  • disclosed16 Sept 2016
  • creditUnknown

Introduced: 16 Sep 2016

CVE-2016-2181  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade openssl to version 1.0.1u, 1.0.2i or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). The Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c.

References

CVSS Scores

version 3.1