libspf libspf2 up to 1.2.7 Spf_dns_resolv.c SPF_dns_resolv_lookup memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in libspf libspf2 up to 1.2.7. The impacted element is the function SPF_dns_resolv_lookup of the file Spf_dns_resolv.c. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2008-2469. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in libspf libspf2 up to 1.2.7 and classified as critical. Affected by this vulnerability is the function SPF_dns_resolv_lookup of the file Spf_dns_resolv.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the SPF_dns_resolv_lookup function in Spf_dns_resolv.c in libspf2 before 1.2.8 allows remote attackers to execute arbitrary code via a long DNS TXT record with a modified length field.

The bug was discovered 10/15/2008. The weakness was shared 10/23/2008 by Dan Kaminsky as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is known as CVE-2008-2469 since 05/28/2008. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed in Perl. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 34678 (GLSA-200810-03 : libspf2: DNS response buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading to version 1.2.3 eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8890.

The vulnerability is also documented in the databases at X-Force (46055), Exploit-DB (6805), Tenable (34678), SecurityFocus (BID 31881†) and OSVDB (49277†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 34678
Nessus Name: GLSA-200810-03 : libspf2: DNS response buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61781
OpenVAS Name: Debian Security Advisory DSA 1659-1 (libspf2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: libspf2 1.2.3
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/28/2008 🔍
10/15/2008 +140 days 🔍
10/21/2008 +6 days 🔍
10/22/2008 +1 days 🔍
10/23/2008 +1 days 🔍
10/23/2008 +0 days 🔍
10/30/2008 +7 days 🔍
10/31/2008 +1 days 🔍
11/02/2008 +2 days 🔍
03/17/2015 +2326 days 🔍
12/11/2024 +3557 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Dan Kaminsky
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-2469 (🔍)
GCVE (CVE): GCVE-0-2008-2469
GCVE (VulDB): GCVE-100-44689

OVAL: 🔍

CERT: 🔍
X-Force: 46055
SecurityFocus: 31881 - 'libspf2' DNS TXT Record Handling Remote Buffer Overflow Vulnerability
Secunia: 32396
OSVDB: 49277 - 'libspf2' - DNS TXT Record Handling Remote Buffer Overflow Issue
Vulnerability Center: 19915 - libspf2 < 1.2.8 SPF_dns_resolv_lookup Function Remote Code Execution Vulnerability, High
Vupen: ADV-2008-2896

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

Entryinfo

Created: 03/17/2015 16:11
Updated: 12/11/2024 04:23
Changes: 03/17/2015 16:11 (87), 08/20/2019 10:19 (9), 11/08/2024 11:15 (16), 12/11/2024 04:23 (1)
Complete: 🔍
Cache ID: 216:BDB:103

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

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