QEMU VNC Server integer underflow

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability was found in QEMU (Virtualization Software) (unknown version). It has been declared as critical. This vulnerability affects an unknown code block of the component VNC Server. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect availability. CVE summarizes:

An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.

The weakness was shared 10/18/2022. The advisory is available at gitlab.com. This vulnerability was named CVE-2022-3165 since 09/08/2022. The technical details are unknown and an exploit is not available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

Productinfo

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Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: gitlab.com

Timelineinfo

09/08/2022 🔍
10/18/2022 +40 days 🔍
10/18/2022 +0 days 🔍
11/10/2022 +23 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: FEDORA-2022-8dcdfe7297
Status: Confirmed

CVE: CVE-2022-3165 (🔍)

Entryinfo

Created: 10/18/2022 11:24
Updated: 11/10/2022 08:13
Changes: 10/18/2022 11:24 (39), 11/10/2022 08:13 (1)
Complete: 🔍

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