CVE-2013-10076 SMUELLER CVE debrief

Who should care

Defenders responsible for Perl applications using ExtUtils::Typemaps::STL::Vector versions before 1.05 should assess exposure and prioritize upgrading to version 1.05 or later. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify the version in use and consider upgrades to mitigate potential memory exhaustion issues.

Why it matters

Defenders should care about this vulnerability as it can lead to memory exhaustion in Perl applications using ExtUtils::Typemaps::STL::Vector versions before 1.05, potentially causing denial of service or performance issues. Version verification and upgrading to version 1.05 or later are recommended.

• Memory exhaustion due to large array allocation
• Potential denial of service due to memory exhaustion
• Need for version verification and potential upgrade
• Possible performance impact due to large array allocation

Technical summary

The vulnerability is caused by the OUTPUT typemaps calling av_extend( av, len-1 ) on an empty list, leading to an underflow and the allocation of an array with 2^32 slots, which can result in memory exhaustion. This affects Perl applications using ExtUtils::Typemaps::STL::Vector versions before 1.05. Defenders should prioritize verifying the version in use and upgrading to version 1.05 or later if necessary. The vulnerability can cause denial of service or performance issues, emphasizing the need for version verification and potential upgrades.

Defensive priority

Defenders should prioritize verifying the version of ExtUtils::Typemaps::STL::Vector in use and upgrading to version 1.05 or later if necessary.

Recommended defensive actions

• Verify the version of ExtUtils::Typemaps::STL::Vector in use
• Upgrade to version 1.05 or later if necessary
• Monitor for potential memory exhaustion issues
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The vulnerability is caused by the OUTPUT typemaps calling av_extend( av, len-1 ) on an empty list, leading to an underflow and the allocation of an array with 2^32 slots. Evidence from the CVE record and source item confirms this technical detail. Defenders should verify the version of ExtUtils::Typemaps::STL::Vector in use and consider upgrading to version 1.05 or later if necessary. Limited source detail suggests explicit evidence-limit language and defensive verification tasks are necessary.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.