Use of a Broken or Risky Cryptographic Algorithm Affecting openssl-libs package, versions <1:1.0.2k-19.amzn2.0.3


high

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 1.51% (87th percentile)
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NVD
3.7 low
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SUSE
5.3 medium
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Red Hat
3.7 low

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  • Snyk ID SNYK-AMZN2-OPENSSLLIBS-1678866
  • published 27 Sep 2021
  • disclosed 10 Sep 2019

How to fix?

Upgrade Amazon-Linux:2 openssl-libs to version 1:1.0.2k-19.amzn2.0.3 or higher.
This issue was patched in ALAS2-2020-1406.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl-libs package and not the openssl-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).

References