Improper Input Validation Affecting perl package, versions <5.18.2-2ubuntu1.4


Severity

Recommended
low

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    3.48% (92nd percentile)

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  • Snyk ID SNYK-UBUNTU1404-PERL-327713
  • published 25 May 2016
  • disclosed 25 May 2016

How to fix?

Upgrade Ubuntu:14.04 perl to version 5.18.2-2ubuntu1.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perl package and not the perl package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."

CVSS Scores

version 3.1
Expand this section

Red Hat

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