Linux Kernel 2.6.25/2.6.25.1/2.6.25.2 ipip6_rcv resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel 2.6.25/2.6.25.1/2.6.25.2. Affected by this vulnerability is the function ipip6_rcv. The manipulation leads to resource management. This vulnerability is uniquely identified as CVE-2008-2136. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.25/2.6.25.1/2.6.25.2 (Operating System). It has been rated as critical. This issue affects the function ipip6_rcv. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

Memory leak in the ipip6_rcv function in net/ipv6/sit.c in the Linux kernel 2.4 before 2.4.36.5 and 2.6 before 2.6.25.3 allows remote attackers to cause a denial of service (memory consumption) via network traffic to a Simple Internet Transition (SIT) tunnel interface, related to the pskb_may_pull and kfree_skb functions, and management of an skb reference count.

The bug was discovered 05/09/2008. The weakness was disclosed 05/15/2008 by Paul Marks (Website). It is possible to read the advisory at kernel.org. The identification of this vulnerability is CVE-2008-2136 since 05/12/2008. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67729 (Oracle Linux 4 : kernel (ELSA-2008-0607)), 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 165690 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2008:032)).

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

The vulnerability is also documented in the databases at X-Force (42451), Tenable (67729), SecurityFocus (BID 29397†), OSVDB (45421†) and Secunia (SA30241†). The entries VDB-3470, VDB-3471, VDB-3494 and VDB-3692 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67729
Nessus Name: Oracle Linux 4 : kernel (ELSA-2008-0607)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 61103
OpenVAS Name: Debian Security Advisory DSA 1588-1 (linux-2.6)
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: 🔍

Patch: kernel.org
SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/17/2008 🔍
05/09/2008 +22 days 🔍
05/12/2008 +3 days 🔍
05/15/2008 +3 days 🔍
05/15/2008 +0 days 🔍
05/16/2008 +1 days 🔍
05/16/2008 +0 days 🔍
05/19/2008 +3 days 🔍
05/20/2008 +1 days 🔍
05/21/2008 +1 days 🔍
05/27/2008 +5 days 🔍
05/28/2008 +1 days 🔍
07/12/2013 +1871 days 🔍
08/10/2019 +2220 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: Paul Marks
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-2136 (🔍)
GCVE (CVE): GCVE-0-2008-2136
GCVE (VulDB): GCVE-100-3707

OVAL: 🔍
IAVM: 🔍

X-Force: 42451
SecurityFocus: 29397 - Linux Kernel SPARC 'mmap()' Denial Of Service Vulnerability
Secunia: 30241 - Linux Kernel Multiple Vulnerabilities, Moderately Critical
OSVDB: 45421 - Linux Kernel net/ipv6/sit.c ipip6_rcv function Simple Internet Transition Tunnel Memory Leak Remote DoS
SecurityTracker: 1020118
Vulnerability Center: 18407 - Linux kernel < 2.6.25.3 Memory leak in the ipip6_rcv function in net/ipv6/sit.c, High
Vupen: ADV-2008-1543

See also: 🔍

Entryinfo

Created: 05/20/2008 09:43
Updated: 08/10/2019 12:09
Changes: 05/20/2008 09:43 (100), 08/10/2019 12:09 (7)
Complete: 🔍
Cache ID: 216:6A0:103

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