CVE-2017-20230

10.0 CRITICAL
Published: April 21, 2026 Modified: April 22, 2026
View on NVD

Description

Storable versions before 3.05 for Perl has a stack overflow. The retrieve_hook function stored the length of the class name into a signed integer but in read operations treated the length as unsigned. This allowed an attacker to craft data that could trigger the overflow.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/Perl/perl5/commit/a258c17c6937f79529c8319a829310e09cdbd216.patch
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Patch
https://github.com/Perl/perl5/issues/15831
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Issue Tracking
https://metacpan.org/release/RURBAN/Storable-3.05/changes
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Release Notes
https://www.nntp.perl.org/group/perl.perl5.porters/2017/01/msg242533.html
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Third Party Advisory
https://www.nntp.perl.org/group/perl.perl5.porters/2017/01/msg242703.html
Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e
Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/04/21/5
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
10.0 / 10.0
EPSS (Exploit Probability)
0.0%
10th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-121

Affected Vendors

nwclark

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