net-snmp 5.2.5/5.3.2.2/5.4 netsnmp_create_subtree_cache input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in net-snmp 5.2.5/5.3.2.2/5.4. It has been rated as critical. Affected by this issue is the function netsnmp_create_subtree_cache. Performing a manipulation results in input validation. This vulnerability was named CVE-2008-4309. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in net-snmp 5.2.5/5.3.2.2/5.4 (Network Management Software). This affects the function netsnmp_create_subtree_cache. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

Integer overflow in the netsnmp_create_subtree_cache function in agent/snmp_agent.c in net-snmp 5.4 before 5.4.2.1, 5.3 before 5.3.2.3, and 5.2 before 5.2.5.1 allows remote attackers to cause a denial of service (crash) via a crafted SNMP GETBULK request, which triggers a heap-based buffer overflow, related to the number of responses or repeats.

The bug was discovered 10/31/2008. The weakness was presented 10/31/2008 (Website). The advisory is shared at us-cert.gov. This vulnerability is uniquely identified as CVE-2008-4309 since 09/29/2008. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 67761 (Oracle Linux 3 / 4 / 5 : net-snmp (ELSA-2008-0971)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116175 (VMware ESX Server Update for net-snmp and libxml2 (VMSA-2009-0001)).

Upgrading to version 5.4 eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 6561.

The vulnerability is also documented in the databases at X-Force (46262), Tenable (67761), SecurityFocus (BID 32020†), OSVDB (49524†) and Secunia (SA32539†). See VDB-3920, VDB-23858, VDB-30376 and VDB-40710 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67761
Nessus Name: Oracle Linux 3 / 4 / 5 : net-snmp (ELSA-2008-0971)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61853
OpenVAS Name: Debian Security Advisory DSA 1663-1 (net-snmp)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: net-snmp 5.4
TippingPoint: 🔍

Timelineinfo

09/29/2008 🔍
10/31/2008 +32 days 🔍
10/31/2008 +0 days 🔍
10/31/2008 +0 days 🔍
10/31/2008 +0 days 🔍
10/31/2008 +0 days 🔍
11/03/2008 +3 days 🔍
11/03/2008 +0 days 🔍
11/04/2008 +1 days 🔍
07/12/2013 +1711 days 🔍
03/17/2015 +613 days 🔍
05/28/2026 +4090 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-4309 (🔍)
GCVE (CVE): GCVE-0-2008-4309
GCVE (VulDB): GCVE-100-44793

OVAL: 🔍
IAVM: 🔍

X-Force: 46262
SecurityFocus: 32020 - Net-SNMP GETBULK Remote Denial of Service Vulnerability
Secunia: 32539
OSVDB: 49524 - CVE-2008-4309 - Net-SNMP - Integer Overflow Issue
SecurityTracker: 1021129
Vulnerability Center: 19930 - Net-SNMP Getbulk Code Remote DoS Vulnerability, Medium
Vupen: ADV-2008-2973

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/28/2026 21:41
Changes: 03/17/2015 16:11 (84), 08/20/2019 11:43 (12), 05/28/2026 21:41 (29)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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