FreeBSD up to 6.1 LPC Option memory corruption

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CTI Interest Score
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6.4$0-$5k0.05

A vulnerability, which was classified as critical, was found in FreeBSD up to 6.1 (Operating System). This affects some unknown functionality of the component LPC Option Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 08/23/2006. The weakness was disclosed 08/24/2006 by Martin Husemann and Pavel Cahyna (Website). It is possible to read the advisory at security.freebsd.org. This vulnerability is uniquely identified as CVE-2006-4304 since 08/22/2006. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 57294 (FreeBSD : opera -- multiple vulnerabilities (a4a809d8-25c8-11e1-b531-00215c6a37bb) (BEAST)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.FreeBSD.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 6 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (28562) and Tenable (57294). The entries 59612 and 59611 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 57294
Nessus Name: FreeBSD : opera -- multiple vulnerabilities (a4a809d8-25c8-11e1-b531-00215c6a37bb) (BEAST)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Context: 🔍

OpenVAS ID: 57294
OpenVAS Name: FreeBSD Security Advisory (FreeBSD-SA-06:18.ppp.asc)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: ftp.FreeBSD.org

Timelineinfo

08/22/2006 🔍
08/23/2006 +1 days 🔍
08/23/2006 +0 days 🔍
08/23/2006 +0 days 🔍
08/23/2006 +0 days 🔍
08/24/2006 +1 days 🔍
08/24/2006 +0 days 🔍
08/24/2006 +0 days 🔍
08/29/2006 +4 days 🔍
09/04/2006 +6 days 🔍
02/03/2009 +883 days 🔍
12/13/2011 +1043 days 🔍
12/14/2011 +1 days 🔍
03/13/2021 +3377 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.freebsd.org
Researcher: Martin Husemann, Pavel Cahyna
Status: Confirmed

CVE: CVE-2006-4304 (🔍)
X-Force: 28562 - BSD PPP link control protocol (LCP) buffer overflow, Low Risk
SecurityTracker: 1016745
Vulnerability Center: 20702 - FreeBSD, NetBSD and OpenBSD Remote Code Execution and DoS Vulnerability via Crafted LCP Packets, Critical
SecurityFocus: 19684 - NetBSD In-Kernel PPP Multiple Buffer Overflow Vulnerabilities
Secunia: 21731
OSVDB: 28176 - FreeBSD ppp LCP Packet Option Processing Remote Overflow

See also: 🔍

Entryinfo

Created: 08/29/2006 11:01
Updated: 03/13/2021 12:32
Changes: 08/29/2006 11:01 (92), 08/26/2019 12:27 (2), 03/13/2021 12:32 (3)
Complete: 🔍

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