Access Restriction Bypass Affecting openssl package, versions [,0.9.8l)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
59.76% (98th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSL-2318605
  • published14 Dec 2021
  • disclosed16 Jun 2012
  • creditUnknown

Introduced: 16 Jun 2012

CVE-2011-1473  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade openssl to version 0.9.8l or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. ** DISPUTED ** OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-5094. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment.

CVSS Scores

version 3.1