QEMU up to 6.0.0 Floppy Drive hw/block/fdc.c fdctrl_transfer_handler memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in QEMU up to 6.0.0. It has been declared as critical. This impacts the function fdctrl_transfer_handler of the file hw/block/fdc.c of the component Floppy Drive Handler. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2021-3507. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in QEMU up to 6.0.0 (Virtualization Software). Affected by this issue is the function fdctrl_transfer_handler of the file hw/block/fdc.c of the component Floppy Drive Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was released 05/07/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2021-3507. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/26/2024).

The vulnerability scanner Nessus provides a plugin with the ID 209569 (Oracle Linux 8 : virt:kvm_utils1 (ELSA-2024-12791)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (209569). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
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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Nessus ID: 209569
Nessus Name: Oracle Linux 8 : virt:kvm_utils1 (ELSA-2024-12791)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2021 🔍
05/07/2021 +18 days 🔍
05/07/2021 +0 days 🔍
10/26/2024 +1268 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2021-3507 (🔍)
GCVE (CVE): GCVE-0-2021-3507
GCVE (VulDB): GCVE-100-174656

Entryinfo

Created: 05/07/2021 09:57
Updated: 10/26/2024 23:15
Changes: 05/07/2021 09:57 (38), 05/12/2021 09:08 (2), 10/26/2024 23:15 (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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