Linux Kernel 3.16.0 kvm_unpin_pages numeric error

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel 3.16.0. The affected element is the function kvm_unpin_pages. The manipulation leads to numeric error. This vulnerability is listed as CVE-2014-8369. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.16.0 (Operating System) and classified as problematic. This issue affects the function kvm_unpin_pages. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability.

The weakness was presented 10/24/2014 as not defined mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2014-8369 since 10/21/2014. The exploitation is known to be easy. The attack can only be initiated within the local network. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The advisory points out:

The third parameter of kvm_iommu_put_pages is wrong, It should be 'gfn - slot->base_gfn'.

The vulnerability scanner Nessus provides a plugin with the ID 81792 (CentOS 6 : kernel (CESA-2015:0674)), 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 195792 (Ubuntu Security Notification for Linux-ti-omap4 Vulnerabilities (USN-2464-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (97755), Tenable (81792), SecurityFocus (BID 70749†), Secunia (SA62326†) and Vulnerability Center (SBV-47900†). See VDB-68067, VDB-68062 and VDB-68061 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81792
Nessus Name: CentOS 6 : kernel (CESA-2015:0674)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703093
OpenVAS Name: Debian Security Advisory DSA 3093-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 3d32e4dbe71374a6780eaf51d719d76f9a9bf22f

Timelineinfo

10/21/2014 🔍
10/24/2014 +3 days 🔍
10/24/2014 +0 days 🔍
10/27/2014 +3 days 🔍
11/10/2014 +14 days 🔍
01/04/2015 +55 days 🔍
01/14/2015 +10 days 🔍
02/23/2022 +2597 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2015:0674
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-8369 (🔍)
GCVE (CVE): GCVE-0-2014-8369
GCVE (VulDB): GCVE-100-68063

OVAL: 🔍

X-Force: 97755 - Linux Kernel kvm_unpin_pages() denial of service, Low Risk
SecurityFocus: 70749
Secunia: 62326 - Ubuntu update for kernel, Not Critical
Vulnerability Center: 47900 - Linux kernel <=3.17.2 'virt/kvm/iommu.c\x27 Local Privilege Escalation and DoS Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 10/27/2014 10:43
Updated: 02/23/2022 18:06
Changes: 10/27/2014 10:43 (76), 06/17/2017 07:28 (3), 02/23/2022 17:51 (5), 02/23/2022 17:59 (12), 02/23/2022 18:06 (2)
Complete: 🔍
Cache ID: 216::103

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