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Vulnerability record · CVE-2006-4304 · published 24 August 2006

CVE-2006-4304: Freebsd vulnerability

Freebsd · Freebsd

Buffer overflow in the sppp driver in FreeBSD 4.11 through 6.1, NetBSD 2.0 through 4.0 beta before 20060823, and OpenBSD 3.8 and 3.9 before 20060902 allows remote attackers to cause a denial of service (panic), obtain sensitive information, and possibly execute arbitrary code via crafted Link Control Protocol (LCP) packets with an option length that exceeds the overall length, which triggers the overflow in (1) pppoe and (2) ippp. NOTE: this issue was originally incorrectly reported for the ppp driver.

10.0 CVSS 2.0 High EPSS 12% · top 4.0%
10.0CVSS 2.0 base score
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
20References
16 Jun 2026Last modified by NVD

Description

Buffer overflow in the sppp driver in FreeBSD 4.11 through 6.1, NetBSD 2.0 through 4.0 beta before 20060823, and OpenBSD 3.8 and 3.9 before 20060902 allows remote attackers to cause a denial of service (panic), obtain sensitive information, and possibly execute arbitrary code via crafted Link Control Protocol (LCP) packets with an option length that exceeds the overall length, which triggers the overflow in (1) pppoe and (2) ippp. NOTE: this issue was originally incorrectly reported for the ppp driver.

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

Affected products

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

References

LinkTags
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-019.txt.asc
http://secunia.com/advisories/21587 PatchVendor Advisory
http://secunia.com/advisories/21731 PatchVendor Advisory
http://security.FreeBSD.org/advisories/FreeBSD-SA-06:18.ppp.asc Vendor Advisory
http://security.FreeBSD.org/patches/SA-06:18/ppp4x.patch
http://securitytracker.com/id?1016745
http://www.openbsd.org/errata.html#sppp Patch
http://www.openbsd.org/errata38.html#sppp Patch
http://www.securityfocus.com/bid/19684
https://exchange.xforce.ibmcloud.com/vulnerabilities/28562
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2006-019.txt.asc
http://secunia.com/advisories/21587 PatchVendor Advisory
http://secunia.com/advisories/21731 PatchVendor Advisory
http://security.FreeBSD.org/advisories/FreeBSD-SA-06:18.ppp.asc Vendor Advisory
http://security.FreeBSD.org/patches/SA-06:18/ppp4x.patch
http://securitytracker.com/id?1016745
http://www.openbsd.org/errata.html#sppp Patch
http://www.openbsd.org/errata38.html#sppp Patch
http://www.securityfocus.com/bid/19684
https://exchange.xforce.ibmcloud.com/vulnerabilities/28562

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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-2006-4304), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.