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Vulnerability record · CVE-2009-2732 · published 21 August 2009

CVE-2009-2732: Ntop memory buffer overflow vulnerability

Ntop · Ntop

The checkHTTPpassword function in http.c in ntop 3.3.10 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an Authorization HTTP header that lacks a : (colon) character in the base64-decoded string.

5.0 CVSS 2.0 Medium EPSS 7.3% · top 5.9% CWE-119 · Memory buffer overflow
5.0CVSS 2.0 base score
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

The checkHTTPpassword function in http.c in ntop 3.3.10 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an Authorization HTTP header that lacks a : (colon) character in the base64-decoded string.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/36403 Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:181
http://www.securityfocus.com/archive/1/505862/100/0/threaded
http://www.securityfocus.com/archive/1/505876/100/0/threaded
http://www.vupen.com/english/advisories/2009/2317 Vendor Advisory
http://secunia.com/advisories/36403 Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:181
http://www.securityfocus.com/archive/1/505862/100/0/threaded
http://www.securityfocus.com/archive/1/505876/100/0/threaded
http://www.vupen.com/english/advisories/2009/2317 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-2732), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.