Linux Kernel up to 2.6.38.8 ip_expire denial of service

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

Summaryinfo

A vulnerability was found in Linux Kernel up to 2.6.38.8. It has been classified as problematic. The impacted element is the function ip_expire. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2011-1927. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel up to 2.6.38.8 (Operating System). It has been rated as problematic. This issue affects the function ip_expire. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.

The issue has been introduced in 03/14/2011. The weakness was disclosed 06/13/2012 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2011-1927 since 05/09/2011. The exploitation is known to be easy. 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.

The vulnerability was handled as a non-public zero-day exploit for at least 457 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 55591 (Ubuntu 11.04 : linux vulnerabilities (USN-1167-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (67498), Tenable (55591), SecurityFocus (BID 47872†) and Vulnerability Center (SBV-41776†). The entries VDB-4416, VDB-4544, VDB-61074 and VDB-61073 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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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55591
Nessus Name: Ubuntu 11.04 : linux vulnerabilities (USN-1167-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 840911
OpenVAS Name: Ubuntu Update for linux USN-1379-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: 64f3b9e203bd06855072e295557dca1485a2ecba

Timelineinfo

03/14/2011 🔍
05/09/2011 +56 days 🔍
05/16/2011 +7 days 🔍
06/13/2012 +394 days 🔍
06/13/2012 +0 days 🔍
10/06/2013 +480 days 🔍
03/23/2015 +533 days 🔍
12/03/2021 +2447 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-1167-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1927 (🔍)
GCVE (CVE): GCVE-0-2011-1927
GCVE (VulDB): GCVE-100-60947

OVAL: 🔍

X-Force: 67498
SecurityFocus: 47872
Vulnerability Center: 41776 - Linux Kernel Prior to 2.6.38.x Remote DOS Vulnerability Via a NULL Pointer Dereference, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/03/2021 17:31
Changes: 03/23/2015 16:50 (63), 05/12/2017 15:04 (5), 12/03/2021 17:24 (5), 12/03/2021 17:31 (2)
Complete: 🔍
Cache ID: 216:BF4:103

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