SecuriTricks - CVE-2017-20230

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.

Product(s) Impacted

Vendor	Product	Versions
Nwclark	Storable	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	nwclark	storable	/	/	/	/	/	perl	/	/

References

https://github.com/Perl/perl5/commit/a258c17c6937f79529c8319a829310e09cdbd216.patch

https://github.com/Perl/perl5/issues/15831

https://metacpan.org/release/RURBAN/Storable-3.05/changes

https://www.nntp.perl.org/group/perl.perl5.porters/2017/01/msg242533.html

https://www.nntp.perl.org/group/perl.perl5.porters/2017/01/msg242703.html

http://www.openwall.com/lists/oss-security/2026/04/21/5

CVSS Score

10.0 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: CHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

View Vector String

Timeline

Published: April 21, 2026, 4:16 p.m.
Last Modified: April 22, 2026, 5:36 p.m.

Status : Analyzed

CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.

More info

Source

9b29abf9-4ab0-4765-b253-1875cd9b441e

CVE-2017-20230