Linux Foundation Xen 3.0.3 input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in Linux Foundation Xen 3.0.3. It has been declared as problematic. This affects an unknown part. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2011-1780. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Foundation Xen 3.0.3 (Virtualization Software) and classified as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.

The weakness was disclosed 01/07/2014 as Bug 702657 as not defined bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is handled as CVE-2011-1780. The exploitation is known to be easy. Access to the local network is required for this attack to succeed. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/18/2022).

The vulnerability scanner Nessus provides a plugin with the ID 55645 (RHEL 5 : kernel (RHSA-2011:1065)), 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 119658 (CentOS Security Update for kernel (CESA-2011:1065)).

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 (68423), Tenable (55645), SecurityFocus (BID 48610†) and Vulnerability Center (SBV-32436†). The entry VDB-58126 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 55645
Nessus Name: RHEL 5 : kernel (RHSA-2011:1065)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 880988
OpenVAS Name: CentOS Update for kernel CESA-2011:1065 centos5 i386
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

04/19/2011 🔍
07/07/2011 +79 days 🔍
07/07/2011 +0 days 🔍
07/22/2011 +15 days 🔍
07/27/2011 +5 days 🔍
01/07/2014 +895 days 🔍
01/07/2014 +0 days 🔍
03/24/2015 +441 days 🔍
01/18/2022 +2492 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: Bug 702657
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1780 (🔍)
GCVE (CVE): GCVE-0-2011-1780
GCVE (VulDB): GCVE-100-66002

OVAL: 🔍
IAVM: 🔍

X-Force: 68423
SecurityFocus: 48610 - Xen Instruction Emulation During VM Exits Denial of Service Vulnerabilities
Vulnerability Center: 32436 - XenSource Xen Local DoS Vulnerability due to Instruction Emulation When Exiting Virtual Machine Causes, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/18/2022 20:58
Changes: 03/24/2015 15:54 (66), 03/28/2017 10:35 (9), 01/18/2022 20:51 (4), 01/18/2022 20:58 (1)
Complete: 🔍
Cache ID: 216:E70:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!