Xen up to 4.11.x race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Xen up to 4.11.x. The impacted element is an unknown function. The manipulation leads to race condition. This vulnerability is documented as CVE-2019-17342. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in Xen up to 4.11.x (Virtualization Software) and classified as critical. This issue affects some unknown processing. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging a race condition that arose when XENMEM_exchange was introduced.

The weakness was released 10/08/2019 (Website). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2019-17342 since 10/07/2019. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-143049, VDB-143050, VDB-143052 and VDB-143053. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 4.5
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/07/2019 🔍
10/08/2019 +1 days 🔍
10/09/2019 +1 days 🔍
09/27/2020 +354 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-17342 (🔍)
GCVE (CVE): GCVE-0-2019-17342
GCVE (VulDB): GCVE-100-143051
See also: 🔍

Entryinfo

Created: 10/09/2019 11:47
Updated: 09/27/2020 17:12
Changes: 10/09/2019 11:47 (54), 09/27/2020 17:12 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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