Detection of Error Condition Without Action Affecting openssl package, versions <1:1.0.1e-34.el7_0.4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.71% (81st percentile)

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  • Snyk ID SNYK-RHEL7-OPENSSL-4998737
  • published 26 Jul 2021
  • disclosed 6 Aug 2014

How to fix?

Upgrade RHEL:7 openssl to version 1:1.0.1e-34.el7_0.4 or higher.
This issue was patched in RHSA-2014:1052.

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 ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a "protocol downgrade" issue.

References

CVSS Scores

version 3.1
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NVD

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

4.3 medium