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CVE Record

CVE-2013-7491: An issue was discovered in the DBI module before 1.628 for Perl.

An issue was discovered in the DBI module before 1.628 for Perl. Stack corruption occurs when a user-defined function requires a non-trivial amount of memory and the Perl stack gets reallocated.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Older Perl DBI installations can hit stack corruption when certain user-defined database functions consume enough memory to force Perl stack reallocation. The business concern is mainly legacy Perl applications with DBI pinned below 1.628. Public sources do not provide severity scoring or evidence of active exploitation.

Executive priority

Handle as a legacy dependency cleanup item unless local exposure is high. It is not supported as an emergency from the supplied evidence, but unpatched memory-corruption issues in core application dependencies should not remain indefinitely in production.

Technical view

CVE-2013-7491 affects the Perl DBI module before 1.628. The described failure mode is stack corruption triggered when a user-defined function needs non-trivial memory and causes Perl stack reallocation. The source bundle links a CPAN bug, a DBI commit, and DBI 1.628 change notes, but no CVSS, CWE, or exploit details.

Likely exposure

Exposure is likely limited to systems running Perl DBI versions before 1.628, especially applications using DBI user-defined functions. The supplied affected-product metadata is incomplete, so asset validation must rely on local dependency inventories rather than vendor/product CPE matching.

Exploitation context

CISA KEV status is false in the source bundle. No provided source states active exploitation or public exploit availability. The issue requires a specific runtime condition involving user-defined functions and Perl stack reallocation, but the sources do not quantify exploitability or impact.

Researcher notes

The record lacks CVSS, CWE, and affected CPE detail. The strongest evidence is the version boundary before DBI 1.628 and the described stack-corruption condition. Avoid assuming remote reachability or code execution without application-specific analysis.

Mitigation direction

  • Upgrade Perl DBI to version 1.628 or later where supported.
  • Identify legacy applications with DBI pinned below 1.628.
  • Review vendor or maintainer guidance for compatibility constraints.
  • Prioritize internet-facing or business-critical Perl services first.

Validation and detection

  • Check dependency inventories for Perl DBI versions below 1.628.
  • Review applications for DBI user-defined function usage.
  • Confirm upgraded environments report DBI 1.628 or later.
  • Run regression tests around affected database workflows.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2013-7491 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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