QEMU eepro100 i8255x Device Emulator infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in QEMU. Impacted is an unknown function of the component eepro100 i8255x Device Emulator. The manipulation results in infinite loop. This vulnerability was named CVE-2021-20255. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in QEMU (Virtualization Software) (unknown version). Affected is an unknown code block of the component eepro100 i8255x Device Emulator. The manipulation with an unknown input leads to a infinite loop vulnerability. CWE is classifying the issue as CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. This is going to have an impact on availability.

The weakness was presented 03/10/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2021-20255. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Infinite loop
CWE: CWE-835 / CWE-404
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
03/10/2021 +83 days 🔍
03/10/2021 +0 days 🔍
03/29/2021 +19 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2021-20255 (🔍)
GCVE (CVE): GCVE-0-2021-20255
GCVE (VulDB): GCVE-100-170868

Entryinfo

Created: 03/10/2021 09:40
Updated: 03/29/2021 14:16
Changes: 03/10/2021 09:40 (35), 03/29/2021 14:14 (2), 03/29/2021 14:16 (18)
Complete: 🔍
Cache ID: 216::103

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