Xen up to 4.11.x IOMMU Update memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Xen up to 4.11.x. It has been classified as critical. This affects an unknown part of the component IOMMU Update Handler. This manipulation causes memory corruption. This vulnerability is handled as CVE-2021-27379. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Xen up to 4.11.x (Virtualization Software). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component IOMMU Update 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 released 02/18/2021. The advisory is shared at xenbits.xen.org. This vulnerability is known as CVE-2021-27379. Neither technical details nor an exploit are publicly available.

Applying a patch is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
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

02/18/2021 🔍
02/18/2021 +0 days 🔍
02/18/2021 +0 days 🔍
03/03/2021 +13 days 🔍

Sourcesinfo

Advisory: xenbits.xen.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-27379 (🔍)
GCVE (CVE): GCVE-0-2021-27379
GCVE (VulDB): GCVE-100-170161

Entryinfo

Created: 02/18/2021 21:04
Updated: 03/03/2021 14:49
Changes: 02/18/2021 21:04 (37), 03/03/2021 14:43 (6), 03/03/2021 14:49 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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