Cryptographic Issues Affecting openssl package, versions <1:1.0.1e-51.el7_2.4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    94.34% (100th percentile)

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  • Snyk ID SNYK-RHEL7-OPENSSL-7955888
  • published 14 Sep 2024
  • disclosed 1 Mar 2016

How to fix?

Upgrade RHEL:7 openssl to version 1:1.0.1e-51.el7_2.4 or higher.
This issue was patched in RHSA-2016:0301.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack.

References

CVSS Scores

version 3.1
Expand this section

Red Hat

5.4 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None