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9.0	$0-$5k	0.00

A vulnerability was found in Kvm Group qemu-kvm 0.12 (Virtualization Software). It has been declared as critical. This vulnerability affects the function process_tx_desc. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in the process_tx_desc function in the e1000 emulation (hw/e1000.c) in qemu-kvm 0.12, and possibly other versions, allows guest OS users to cause a denial of service (QEMU crash) and possibly execute arbitrary code via crafted legacy mode packets.

The weakness was presented 01/27/2012 as Bug 772075 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2012-0029 since 12/07/2011. The attack needs to be done within the local network. A single authentication is necessary for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 68433 (Oracle Linux 6 : qemu-kvm (ELSA-2012-0050)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120020 (CentOS Security Update for KVM (CESA-2012:0051)).

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 (72656) and Tenable (68433).

Productinfo

Type

• Virtualization Software

Vendor

• Kvm Group

Name

• qemu-kvm

Version

• 0.12

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 9.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

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: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

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: 68433
Nessus Name: Oracle Linux 6 : qemu-kvm (ELSA-2012-0050)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71093
OpenVAS Name: Debian Security Advisory DSA 2396-1 (qemu-kvm)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/07/2011 🔍
01/23/2012 +47 days 🔍
01/23/2012 +0 days 🔍
01/24/2012 +1 days 🔍
01/27/2012 +3 days 🔍
01/27/2012 +0 days 🔍
02/06/2012 +10 days 🔍
07/12/2013 +522 days 🔍
03/23/2015 +619 days 🔍
11/29/2021 +2443 days 🔍

Sourcesinfo

Advisory: Bug 772075
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-0029 (🔍)
OVAL: 🔍

X-Force: 72656
Vulnerability Center: 34395 - QEMU-KVM E1000 process_tx_desc() Local DoS \\ Code Execution via Crafted Legacy Mode Packets, Medium
SecurityFocus: 51642 - QEMU KVM CVE-2012-0029 Local Privilege Escalation Vulnerability
Secunia: 47740 - Qemu Two Buffer Overflow Vulnerabilities, Moderately Critical

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/29/2021 08:59
Changes: 03/23/2015 16:50 (65), 04/09/2017 14:28 (13), 11/29/2021 08:59 (3)
Complete: 🔍

Discussion

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