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Integer Overflow or Wraparound Affecting openssl package, versions <1:1.0.1e-60.el7_3.1

Severity

 Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    4.55% (93rd percentile)

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  • Snyk ID SNYK-RHEL7-OPENSSL-5190227
  • published 26 Jul 2021
  • disclosed 26 Jan 2017
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Introduced: 26 Jan 2017

CVE-2017-3731 Open this link in a new tab
CWE-190 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade RHEL:7 openssl to version 1:1.0.1e-60.el7_3.1 or higher.
This issue was patched in RHSA-2017:0286.

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.

If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.

References

CVSS Scores

version 3.1
Expand this section

NVD

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