NetBSD up to 5.1 IPComp Payload Decompression memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in NetBSD 4.0/5.0/5.0.1/5.0.2/5.1. This issue affects some unknown processing of the component IPComp Payload Decompression. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2011-1547. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in NetBSD 4.0/5.0/5.0.1/5.0.2/5.1 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component IPComp Payload Decompression. 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 availability. The summary by CVE is:

Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5.1.1, when IPsec is enabled, allow remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a crafted (1) IPv4 or (2) IPv6 packet with nested IPComp headers.

The weakness was disclosed 04/01/2011 by Tavis Ormandy (@taviso) with Google Security Team (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is known as CVE-2011-1547 since 03/29/2011. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Tavis Ormandy and been published immediately after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.netbsd.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Exploit-DB (17097) and Secunia (SA43969†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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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
Author: Tavis Ormandy
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: ftp.netbsd.org

Timelineinfo

03/29/2011 🔍
04/01/2011 +3 days 🔍
04/01/2011 +0 days 🔍
04/01/2011 +0 days 🔍
04/01/2011 +0 days 🔍
04/18/2011 +17 days 🔍
05/09/2011 +21 days 🔍
08/04/2024 +4836 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Tavis Ormandy (@taviso)
Organization: Google Security Team
Status: Confirmed

CVE: CVE-2011-1547 (🔍)
GCVE (CVE): GCVE-0-2011-1547
GCVE (VulDB): GCVE-100-4327
CERT: 🔍
Secunia: 43969 - NetBSD IPComp Payload Decompression Stack Overflow Vulnerability, Highly Critical

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

Entryinfo

Created: 04/18/2011 02:00
Updated: 08/04/2024 13:45
Changes: 04/18/2011 02:00 (57), 04/24/2018 08:52 (14), 06/25/2024 05:29 (16), 08/04/2024 13:45 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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