Xen xenstored memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Xen. This affects an unknown function of the component xenstored. The manipulation results in memory corruption. This vulnerability is identified as CVE-2022-42309. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in Xen (Virtualization Software) (unknown version). Affected is an unknown code block of the component xenstored. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use a wrong pointer during node creation in an error path, resulting in a crash of xenstored or a memory corruption in xenstored causing further damage. Entering the error path can be controlled by the guest e.g. by exceeding the quota value of maximum nodes per domain.

The weakness was released 11/01/2022. The advisory is shared for download at xenbits.xen.org. This vulnerability is traded as CVE-2022-42309 since 10/03/2022. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211096 (Fedora 37 : xen (2022-9f51d13fa3)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Tenable (211096). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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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Nessus ID: 211096
Nessus Name: Fedora 37 : xen (2022-9f51d13fa3)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/03/2022 🔍
11/01/2022 +29 days 🔍
11/01/2022 +0 days 🔍
11/17/2024 +747 days 🔍

Sourcesinfo

Advisory: FEDORA-2022-07438e12df
Status: Confirmed

CVE: CVE-2022-42309 (🔍)
GCVE (CVE): GCVE-0-2022-42309
GCVE (VulDB): GCVE-100-212616

Entryinfo

Created: 11/01/2022 15:42
Updated: 11/17/2024 07:49
Changes: 11/01/2022 15:42 (38), 11/30/2022 12:33 (2), 11/17/2024 07:49 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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