Use After Free Affecting openssl package, versions [0,1.1.0b)


Severity

Recommended
0.0
critical
0
10

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

Threat Intelligence

EPSS
92.49% (100th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSL-2318781
  • published14 Dec 2021
  • disclosed26 Sept 2016
  • creditUnknown

Introduced: 26 Sep 2016

CVE-2016-6309  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade openssl to version 1.1.0b or higher.

Overview

Affected versions of this package are vulnerable to Use After Free statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a denial of service (use-after-free) or possibly execute arbitrary code via a crafted TLS session.

References

CVSS Scores

version 3.1