QEMU up to 5.1.x Memory Management API out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in QEMU up to 5.1.x and classified as critical. Impacted is an unknown function of the component Memory Management API. Performing a manipulation results in out-of-bounds write. This vulnerability is cataloged as CVE-2020-27821. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in QEMU up to 5.1.x (Virtualization Software). This affects an unknown part of the component Memory Management API. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 12/09/2020 as 1902651. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2020-27821. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.2.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209571). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

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

NVD Base Score: 6.0
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: Out-of-bounds write
CWE: CWE-787 / 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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Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: QEMU 5.2.0

Timelineinfo

10/27/2020 🔍
12/09/2020 +43 days 🔍
12/09/2020 +0 days 🔍
10/26/2024 +1417 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: 1902651
Status: Confirmed

CVE: CVE-2020-27821 (🔍)
GCVE (CVE): GCVE-0-2020-27821
GCVE (VulDB): GCVE-100-165819

Entryinfo

Created: 12/09/2020 11:25
Updated: 10/26/2024 07:12
Changes: 12/09/2020 11:25 (39), 12/14/2020 12:22 (5), 12/14/2020 12:25 (18), 10/26/2024 07:12 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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