Linux Kernel 2.6.28 kvm_arch_vcpu_ioctl_set_sregs input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 2.6.28. Affected by this issue is the function kvm_arch_vcpu_ioctl_set_sregs. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2009-2287. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel 2.6.28 (Operating System). This affects the function kvm_arch_vcpu_ioctl_set_sregs. 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. The summary by CVE is:

The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function.

The issue has been introduced in 12/25/2008. The weakness was shared 07/01/2009 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2009-2287 since 07/01/2009. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for 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 188 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 41416 (SuSE 11 Security Update : KVM (SAT Patch Number 1166)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE 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 (51491), Tenable (41416), SecurityFocus (BID 35529†), Secunia (SA35675†) and Vulnerability Center (SBV-23048†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 41416
Nessus Name: SuSE 11 Security Update : KVM (SAT Patch Number 1166)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 64556
OpenVAS Name: Debian Security Advisory DSA 1845-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/25/2008 🔍
04/16/2009 +112 days 🔍
04/16/2009 +0 days 🔍
07/01/2009 +76 days 🔍
07/01/2009 +0 days 🔍
07/01/2009 +0 days 🔍
07/06/2009 +5 days 🔍
08/04/2009 +29 days 🔍
09/24/2009 +51 days 🔍
03/17/2015 +2000 days 🔍
08/12/2021 +2340 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2287 (🔍)
GCVE (CVE): GCVE-0-2009-2287
GCVE (VulDB): GCVE-100-48819

OVAL: 🔍

X-Force: 51491
SecurityFocus: 35529 - Linux Kernel 'kvm_arch_vcpu_ioctl_set_sregs()' Local Denial of Service Vulnerability
Secunia: 35675 - KVM "kvm_arch_vcpu_ioctl_set_sregs()" Denial of Service, Not Critical
Vulnerability Center: 23048 - Linux kernel \x3C 2.6.30 on x86 Systems NULL Pointer Dereference Local DoS Vulnerability, Low

Entryinfo

Created: 03/17/2015 23:38
Updated: 08/12/2021 08:29
Changes: 03/17/2015 23:38 (63), 02/12/2017 13:04 (13), 08/12/2021 08:29 (3)
Complete: 🔍
Cache ID: 216::103

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