QEMU Tulip Device Emulation denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability was found in QEMU (Virtualization Software) (the affected version unknown). It has been classified as problematic. Affected is an unknown part of the component Tulip Device Emulation. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

The weakness was shared 09/14/2022 as 1171. The advisory is available at gitlab.com. This vulnerability is traded as CVE-2022-2962 since 08/23/2022. The technical details are unknown and an exploit is not available.

Applying the patch 36a894aeb64a2e02871016da1c37d4a4ca109182 is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 36a894aeb64a2e02871016da1c37d4a4ca109182

Timelineinfo

08/23/2022 🔍
09/14/2022 +22 days 🔍
09/14/2022 +0 days 🔍
10/17/2022 +33 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: 1171
Status: Confirmed

CVE: CVE-2022-2962 (🔍)

Entryinfo

Created: 09/14/2022 11:38
Updated: 10/17/2022 09:26
Changes: 09/14/2022 11:38 (41), 10/17/2022 09:26 (11)
Complete: 🔍

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