VDB-160360 · CVE-2020-14415 · Nessus 209571

QEMU up to 4.x audio/ossaudio.c oss_write divide by zero

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4.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in QEMU up to 4.x and classified as critical. This affects the function oss_write of the file audio/ossaudio.c. Executing a manipulation can lead to divide by zero. This vulnerability is registered as CVE-2020-14415. The attack needs to be launched locally. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in QEMU up to 4.x (Virtualization Software). It has been declared as critical. This vulnerability affects the function oss_write of the file audio/ossaudio.c. The manipulation with an unknown input leads to a divide by zero vulnerability. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

oss_write in audio/ossaudio.c in QEMU before 5.0.0 mishandles a buffer position.

The weakness was published 08/27/2020 (Website). The advisory is shared for download at usn.ubuntu.com. This vulnerability was named CVE-2020-14415 since 06/18/2020. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is 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 5.0.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.qemu.org. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the vulnerability database at Tenable (209571). Similar entry is available at VDB-160457. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Virtualization Software

Name

QEMU

Version

License

open-source

Website

Product: https://www.qemu.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: QEMU 5.0.0
Patch: git.qemu.org

Timelineinfo

06/18/2020 🔍
08/27/2020 +70 days 🔍
08/28/2020 +1 days 🔍
10/26/2024 +1520 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: usn.ubuntu.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-14415 (🔍)
GCVE (CVE): GCVE-0-2020-14415
GCVE (VulDB): GCVE-100-160360
See also: 🔍

Entryinfo

Created: 08/28/2020 07:33
Updated: 10/26/2024 17:11
Changes: 08/28/2020 07:33 (42), 08/28/2020 07:38 (18), 10/26/2024 17:11 (20)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.