Red Hat libvirt up to 0.0.4 virNetServerProgramDispatchCall null pointer dereference

CVSS Meta Temp Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Red Hat libvirt up to 0.0.4 and classified as problematic. This vulnerability affects the function virNetServerProgramDispatchCall. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2012-4423. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Red Hat libvirt up to 0.0.4 (Virtualization Software). It has been declared as problematic. Affected by this vulnerability is the function virNetServerProgramDispatchCall. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.

The weakness was shared 11/19/2012 by Petr Matousek (Website). The advisory is shared at redhat.com. This vulnerability is known as CVE-2012-4423 since 08/21/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 74880 (openSUSE Security Update : libvirt (openSUSE-SU-2013:0274-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166168 (SUSE Security Update for libvirt (openSUSE-SU-2013:0274-1)).

Upgrading to version 0.0.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (78658), Tenable (74880), SecurityFocus (BID 55541†), SecurityTracker (ID 1027649†) and Vulnerability Center (SBV-36544†). The entry VDB-63533 is related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74880
Nessus Name: openSUSE Security Update : libvirt (openSUSE-SU-2013:0274-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881516
OpenVAS Name: CentOS Update for libvirt CESA-2012:1359 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libvirt 0.0.5
Patch: b7ff9e696063189a715802d081d55a398663c15a

Timelineinfo

08/21/2012 🔍
09/13/2012 +23 days 🔍
09/13/2012 +0 days 🔍
10/12/2012 +29 days 🔍
10/15/2012 +3 days 🔍
11/19/2012 +35 days 🔍
11/19/2012 +0 days 🔍
06/13/2014 +571 days 🔍
03/24/2015 +284 days 🔍
12/20/2021 +2463 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: USN-1708-1
Researcher: Petr Matousek
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-4423 (🔍)
GCVE (CVE): GCVE-0-2012-4423
GCVE (VulDB): GCVE-100-62989

OVAL: 🔍

X-Force: 78658
SecurityFocus: 55541 - libvirt 'virNetServerProgramDispatchCall()' Function Remote Denial Of Service Vulnerability
SecurityTracker: 1027649 - libvirt Flaw in virNetServerProgramDispatchCall() Lets Remote Users Deny Service
Vulnerability Center: 36544 - libvirt Remote Denial of Service via an RPC Message, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/20/2021 08:42
Changes: 03/24/2015 12:22 (65), 04/18/2017 11:30 (16), 12/20/2021 08:38 (5), 12/20/2021 08:39 (1), 12/20/2021 08:42 (1)
Complete: 🔍
Cache ID: 216:22B:103

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