Numeric Errors Affecting openssl package, versions <1:1.0.1e-42.el7_1.8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    12.06% (96th percentile)

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  • Snyk ID SNYK-RHEL7-OPENSSL-4525639
  • published 26 Jul 2021
  • disclosed 28 May 2015

How to fix?

Upgrade RHEL:7 openssl to version 1:1.0.1e-42.el7_1.8 or higher.
This issue was patched in RHSA-2015:1115.

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.

Race condition in a certain Red Hat patch to the PRNG lock implementation in the ssleay_rand_bytes function in OpenSSL, as distributed in openssl-1.0.1e-25.el7 in Red Hat Enterprise Linux (RHEL) 7 and other products, allows remote attackers to cause a denial of service (application crash) by establishing many TLS sessions to a multithreaded server, leading to use of a negative value for a certain length field.

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)
    None
  • Availability (A)
    Low
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Red Hat

4.3 medium