QEMU ATI VGA Device Emulation ati_2d_blt out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$5k-$25k0.00

Summaryinfo

A vulnerability was found in QEMU. It has been classified as critical. This affects the function ati_2d_blt of the component ATI VGA Device Emulation. This manipulation causes out-of-bounds write. This vulnerability is registered as CVE-2021-3638. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in QEMU (Virtualization Software) (unknown version). Affected by this vulnerability is the function ati_2d_blt of the component ATI VGA Device Emulation. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability.

The weakness was published 03/04/2022. The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2021-3638 since 07/08/2021. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (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). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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

07/08/2021 🔍
03/04/2022 +239 days 🔍
03/04/2022 +0 days 🔍
10/26/2024 +967 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2021-3638 (🔍)
GCVE (CVE): GCVE-0-2021-3638
GCVE (VulDB): GCVE-100-194185

Entryinfo

Created: 03/04/2022 08:12
Updated: 10/26/2024 22:38
Changes: 03/04/2022 08:12 (37), 03/06/2022 12:06 (1), 10/26/2024 22:38 (16)
Complete: 🔍
Cache ID: 216::103

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

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