Security readout for executives and security teams
Plain-English summary
CVE-2013-2494 can let a remote name server make vulnerable ISC DHCP servers consume excessive memory. The practical risk is service disruption, not data theft or code execution, based on the provided sources.
Executive priority
Treat as a service-availability issue. Patch exposed or critical DHCP servers promptly because DHCP disruption can affect endpoint connectivity, but sources do not indicate active exploitation.
Technical view
The issue is in libdns used by ISC DHCP 4.2.x before 4.2.5-P1. Remote name servers can trigger memory consumption through regular-expression-related vectors, causing denial of service against dhcpd.
Likely exposure
Exposure appears limited to environments running ISC DHCP 4.2.x before 4.2.5-P1, especially dhcpd systems that interact with remote name servers.
Exploitation context
The source bundle does not show CISA KEV listing, active exploitation, public exploit use, or confirmed exploitation in the wild.
Researcher notes
Evidence is narrow: the CVE description and ISC reference identify libdns memory consumption via regex-related vectors. No CVSS, CWE, detailed affected CPEs, or exploit status are provided.
Mitigation direction
- Upgrade affected ISC DHCP 4.2.x systems to 4.2.5-P1 or a vendor-supported later release.
- Review ISC advisory AA-00880 for vendor-specific guidance and packaging details.
- Prioritize DHCP servers supporting critical user, branch, or production networks.
- Use distribution security updates where ISC DHCP is supplied by an OS vendor.
Validation and detection
- Inventory systems running dhcpd and record ISC DHCP package versions.
- Confirm no production DHCP server runs ISC DHCP 4.2.x before 4.2.5-P1.
- Check OS vendor advisories or package changelogs for the CVE fix.
- Monitor DHCP service health and memory use during remediation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2013-2494 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.isc.org/article/AA-00880/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.