Buffer Overflow

Affecting perl package, versions <5.26.1-6ubuntu0.5

Report new vulnerabilities
Do your applications use this vulnerable package? Test your applications

Overview

Affected versions of this package are vulnerable to Buffer Overflow regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls. An application written in Perl would only be vulnerable to this flaw if it evaluates regular expressions supplied by the attacker. Evaluating regular expressions in this fashion is known to be dangerous since the regular expression engine does not protect against denial of service attacks in this usage scenario.]

Remediation

Upgrade perl to version or higher.

References

CVSS Score

7.5
low severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE
CVE-2020-12723
CWE
CWE-120
Snyk ID
SNYK-UBUNTU1804-PERL-570823
Disclosed
05 Jun, 2020
Published
01 Jun, 2020