CVE-2021-32845

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, the implementation of `qnotify` at `pci_vtrnd_notify` fails to check the return value of `vq_getchain`. This leads to `struct iovec iov;` being uninitialized and used to read memory in `len = (int) read(sc->vrsc_fd, iov.iov_base, iov.iov_len);` when an attacker is able to make `vq_getchain` fail. This issue may lead to a guest crashing the host causing a denial of service and, under certain circumstance, memory corruption. This issue is fixed in commit 41272a980197917df8e58ff90642d14dec8fe948.

References

Link	Resource
https://github.com/moby/hyperkit/commit/41272a980197917df8e58ff90642d14dec8fe948
https://github.com/moby/hyperkit/pull/313
https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/

Configurations

Configuration 1

No configuration.

History

24 Jan 2023, 16:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:predictapp_project:predictapp::::::::
References	~~(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 -~~	(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 - Patch, Third Party Advisory
References	~~(MISC) https://github.com/abhilash1985/PredictApp/pull/73 -~~	(MISC) https://github.com/abhilash1985/PredictApp/pull/73 - Patch, Third Party Advisory
References	~~(MISC) https://vuldb.com/?id.218387 -~~	(MISC) https://vuldb.com/?id.218387 - Third Party Advisory
References	~~(MISC) https://vuldb.com/?ctiid.218387 -~~	(MISC) https://vuldb.com/?ctiid.218387 - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
First Time		Predictapp Project predictapp Predictapp Project

16 Jan 2023, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-02-17 11:15

Updated : 2023-02-21 02:50

NVD link : CVE-2021-32845

Mitre link : CVE-2021-32845

Products Affected

No products.

CWE

No CWE.