CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.7 | $0-$5k | 0.00 |
A vulnerability classified as problematic was found in Linux Kernel 2.6.32.51 (Operating System). This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:
The Performance Events subsystem in the Linux kernel before 3.1 does not properly handle event overflows associated with PERF_COUNT_SW_CPU_CLOCK events, which allows local users to cause a denial of service (system hang) via a crafted application.
The issue has been introduced in 12/03/2009. The weakness was disclosed 05/24/2012 by Vince Weaver (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2011-2918. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.
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 903 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 76639 (RHEL 6 : MRG (RHSA-2012:0333)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350731 (Amazon Linux Security Advisory for kernel: ALAS-2011-016).
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 (69208) and Tenable (76639). The entries 4662 and 58437 are pretty similar.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Resource managementCWE: CWE-399 / CWE-404
ATT&CK: Unknown
Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 76639
Nessus Name: RHEL 6 : MRG (RHSA-2012:0333)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 863571
OpenVAS Name: Fedora Update for kernel FEDORA-2011-12874
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Patch: a8b0ca17b80e92faab46ee7179ba9e99ccb61233
Timeline
12/03/2009 🔍06/27/2011 🔍
07/27/2011 🔍
08/15/2011 🔍
10/06/2011 🔍
05/24/2012 🔍
05/24/2012 🔍
07/22/2014 🔍
03/23/2015 🔍
12/02/2021 🔍
Sources
Vendor: kernel.orgAdvisory: RHSA-2012:0333
Researcher: Vince Weaver
Status: Not defined
Confirmation: 🔍
CVE: CVE-2011-2918 (🔍)
OVAL: 🔍
X-Force: 69208
Vulnerability Center: 33472 - Linux Kernel 3.0 through 3.0-rc4-git1 Local Denial of Service Vulnerability, Low
SecurityFocus: 49152 - Linux Kernel 'perf_count_sw_cpu_clock' Event Denial of Service Vulnerability
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍
Entry
Created: 03/23/2015 16:50Updated: 12/02/2021 08:08
Changes: 03/23/2015 16:50 (63), 04/03/2017 17:47 (13), 12/02/2021 07:59 (7), 12/02/2021 08:06 (11), 12/02/2021 08:08 (2)
Complete: 🔍
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