CVE-2013-4359: n/a vulnerability

CVE-2013-4359: Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a d...

Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a denial of service (memory consumption) via a large response count value in an authentication request, which triggers a large memory allocation.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 16:38 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw lets a remote user trigger excessive memory allocation in ProFTPD's SFTP keyboard-interactive authentication handling. The described impact is denial of service, not data theft or code execution. Internet-facing SFTP endpoints are the main business concern. Exposure is likely limited to systems running ProFTPD with mod_sftp enabled on the affected versions. Risk is higher where SFTP authentication is reachable from untrusted networks. Handle during normal vulnerability remediation, accelerated for externally reachable SFTP servers. The business risk is service disruption, especially on shared or critical file-transfer infrastructure. Mitigation focus: Identify ProFTPD instances using mod_sftp.; Check vendor advisories for supported fixed packages.; Prioritize updates for internet-facing SFTP services..

Prepared: Jun 14, 2026, 15:32 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 30, 2013, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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