| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.2 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as problematic has been found in Red Hat Enterprise Linux up to 4. The affected element is an unknown function. The manipulation results in input validation. This vulnerability is cataloged as CVE-2009-4272. There is no exploit available. The affected component should be upgraded.
Details
A vulnerability was found in Red Hat Enterprise Linux up to 4 (Operating System). It has been classified as critical. Affected is an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly. This is going to have an impact on availability. CVE summarizes:
A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing "emergency" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic.
The weakness was shared 01/27/2010 with Parallels (Website). The advisory is shared for download at rhn.redhat.com. This vulnerability is traded as CVE-2009-4272. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 44096 (CentOS 5 : kernel (CESA-2010:0046)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155737 (Oracle Enterprise Linux Update for Kernel (ELSA-2010-0046)).
Upgrading to version 5 eliminates this vulnerability.
The vulnerability is also documented in the databases at X-Force (55808), Tenable (44096), SecurityFocus (BID 37875†) and Vulnerability Center (SBV-24653†). The entries VDB-40214, VDB-51836, VDB-51835 and VDB-51834 are related to this item. Once again VulDB remains the best source for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.redhat.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.2
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| 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: Input validationCWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 44096
Nessus Name: CentOS 5 : kernel (CESA-2010:0046)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 880643
OpenVAS Name: CentOS Update for kernel CESA-2010:0046 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Enterprise Linux 5
Timeline
12/10/2009 🔍01/20/2010 🔍
01/20/2010 🔍
01/21/2010 🔍
01/27/2010 🔍
01/27/2010 🔍
03/18/2015 🔍
08/31/2021 🔍
Sources
Vendor: redhat.comAdvisory: rhn.redhat.com
Organization: Parallels
Status: Not defined
Confirmation: 🔍
CVE: CVE-2009-4272 (🔍)
GCVE (CVE): GCVE-0-2009-4272
GCVE (VulDB): GCVE-100-51684
OVAL: 🔍
IAVM: 🔍
X-Force: 55808
SecurityFocus: 37875 - Red Hat Linux Kernel Routing Implementation Multiple Remote Denial of Service Vulnerabilities
Vulnerability Center: 24653 - RedHat Linux Kernel Multiple Remote DoS Vulnerabilities affecting the Routing Implementation, High
See also: 🔍
Entry
Created: 03/18/2015 15:15Updated: 08/31/2021 19:12
Changes: 03/18/2015 15:15 (65), 02/20/2017 10:09 (9), 08/31/2021 19:05 (4), 08/31/2021 19:12 (1)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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