Resource Exhaustion Affecting openssl-perl package, versions <1:1.0.1e-60.el7_3.1


Severity

Recommended
medium

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    20.25% (97th percentile)

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  • Snyk ID SNYK-ORACLE7-OPENSSLPERL-2513764
  • published 10 Apr 2022
  • disclosed 13 Nov 2017

How to fix?

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

NVD Description

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

A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL protocol defined processing of ALERT packets during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail to accept connections from other clients.

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