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TI-2017-14296 Aliases CVE-2017-20230GHSA-6r7m-2wh8-438w

Stack-based buffer overflow in NWCLARK Storable

Priority MEDIUM 44CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00641 50th percentileScored 2026-11-07
Fix Partial Storable (NWCLARK): 3.05Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NWCLARKStorablebefore 3.053.05Patch availableCNA
  • Storable VendorNWCLARK Affected before 3.05 Fixed in 3.05 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nwclark:storable:*:*:*:*:*:perl:*:*before 3.05VulnerableNWCLARK
  • cpe:2.3:a:nwclark:storable:*:*:*:*:*:perl:*:* Versions before 3.05 Vulnerable ·NWCLARK

Remediation

  • Fix · CNA Storable (NWCLARK) Fixed in 3.05

Red Hat 1 advisory

  • RHSA-2026:7578 Released 2026-04-10 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images perl-Storable-3.37-522.1.hum1@aarch64, perl-Storable-3.37-522.1.hum1@src, perl-Storable-3.37-522.1.hum1@x86_64 +2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Hardened ImagesFixed RHSA-2026:7578
Not affected: 3 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-20230
  2. 2026-10-03 Alias added: GHSA-6r7m-2wh8-438w
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

Patch 1

Advisory 2

Other 2

  • TI-2026-41370 Integer overflow in HAARG Storable CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences