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Improper Input Validation Affecting openssl package, versions <1.1.0e-1

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
2.6% (91st percentile)

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  • Snyk IDSNYK-DEBIAN9-OPENSSL-375002
  • published4 May 2017
  • disclosed4 May 2017
Report a new vulnerability Found a mistake?

Introduced: 4 May 2017

CVE-2017-3733  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:9 openssl to version 1.1.0e-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected.