xhyve e1000 Virtual Device stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in xhyve and classified as critical. This vulnerability affects unknown code of the component e1000 Virtual Device. Performing a manipulation results in stack-based overflow. This vulnerability was named CVE-2022-35867. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in xhyve (the affected version unknown). It has been classified as critical. This affects an unknown part of the component e1000 Virtual Device. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows local attackers to escalate privileges on affected installations of xhyve. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the e1000 virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-15056.

The weakness was presented 08/04/2022 as ZDI-22-949. The advisory is shared at zerodayinitiative.com. This vulnerability is uniquely identified as CVE-2022-35867 since 07/14/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/04/2022).

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

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

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.6
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Zero Day Initiative): 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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

07/14/2022 🔍
08/04/2022 +21 days 🔍
08/04/2022 +0 days 🔍
08/04/2022 +0 days 🔍

Sourcesinfo

Advisory: ZDI-22-949
Status: Not defined

CVE: CVE-2022-35867 (🔍)
GCVE (CVE): GCVE-0-2022-35867
GCVE (VulDB): GCVE-100-205593

Entryinfo

Created: 08/04/2022 08:56
Changes: 08/04/2022 08:56 (47)
Complete: 🔍
Cache ID: 216::103

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

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