Denial Of Service (DoS) Affecting openssl package, versions [1.0.2,1.0.2b)[1.0.1,1.0.1n)[1.0.0,1.0.0e)[,0.9.8s)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
23.22% (98th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSL-2318656
  • published14 Dec 2021
  • disclosed12 Jun 2015
  • creditUnknown

Introduced: 12 Jun 2015

CVE-2015-1788  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade openssl to version 1.0.2b, 1.0.1n, 1.0.0e, 0.9.8s or higher.

Overview

Affected versions of this package are vulnerable to Denial Of Service (DoS). The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication.

CVSS Base Scores

version 3.1