Xen PCI Device memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Xen. Affected by this vulnerability is an unknown functionality of the component PCI Device Handler. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2021-28702. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in Xen (Virtualization Software) (affected version not known). Affected by this vulnerability is some unknown functionality of the component PCI Device Handler. 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.

The weakness was disclosed 10/07/2021. The advisory is shared at xenbits.xenproject.org. This vulnerability is known as CVE-2021-28702 since 03/18/2021. Neither technical details nor an exploit are publicly available.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/18/2021 🔍
10/07/2021 +202 days 🔍
10/07/2021 +0 days 🔍
10/10/2021 +3 days 🔍

Sourcesinfo

Advisory: xenbits.xenproject.org
Status: Confirmed

CVE: CVE-2021-28702 (🔍)
GCVE (CVE): GCVE-0-2021-28702
GCVE (VulDB): GCVE-100-183997

Entryinfo

Created: 10/07/2021 09:06
Updated: 10/10/2021 10:34
Changes: 10/07/2021 09:06 (37), 10/10/2021 10:34 (1)
Complete: 🔍
Cache ID: 216::103

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