Linux Kernel 3.12.5 kvm/lapic.c apic_get_tmcct lapic_timer.period numeric error

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

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel 3.12.5. This affects the function apic_get_tmcct of the file kvm/lapic.c. The manipulation of the argument lapic_timer.period results in numeric error. This vulnerability was named CVE-2013-6367. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.12.5 (Operating System). It has been classified as critical. Affected is the function apic_get_tmcct of the file kvm/lapic.c. The manipulation of the argument lapic_timer.period with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on availability. CVE summarizes:

The apic_get_tmcct function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via crafted modifications of the TMICT value.

The weakness was presented 12/12/2013 by Andrew Honig as RHSA-2013-1802 as not defined advisory (Red Hat Security Advisory). The advisory is shared for download at rhn.redhat.com. This vulnerability is traded as CVE-2013-6367 since 11/04/2013. The attack needs to approached within the local network. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 72473 (RHEL 5 : kvm (RHSA-2014:0163)), 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 123695 (Red Hat Update for kernel (RHSA-2014:0284)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (72473), SecurityFocus (BID 64270†), OSVDB (100985†) and Vulnerability Center (SBV-42580†). See VDB-11235 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
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: Numeric error
CWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 72473
Nessus Name: RHEL 5 : kvm (RHSA-2014:0163)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881832
OpenVAS Name: CentOS Update for kernel CESA-2013:1801 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

11/04/2013 🔍
12/12/2013 +38 days 🔍
12/12/2013 +0 days 🔍
12/12/2013 +0 days 🔍
12/14/2013 +2 days 🔍
12/16/2013 +2 days 🔍
12/16/2013 +0 days 🔍
02/13/2014 +59 days 🔍
06/04/2021 +2668 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2013-1802
Researcher: Andrew Honig
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-6367 (🔍)
GCVE (CVE): GCVE-0-2013-6367
GCVE (VulDB): GCVE-100-11508

OVAL: 🔍

SecurityFocus: 64270
OSVDB: 100985
Vulnerability Center: 42580 - Linux Kernel <=3.12.5 Remote Denial of Service due to a Divide-By-Zero Error in the 'Apic_Get_Tmcct()\x27 Function, Medium

See also: 🔍

Entryinfo

Created: 12/16/2013 11:17
Updated: 06/04/2021 11:10
Changes: 12/16/2013 11:17 (78), 05/17/2017 09:08 (2), 06/04/2021 11:10 (3)
Complete: 🔍
Committer: olku
Cache ID: 216:AB8:103

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