CVE-2021-32845 Detail
This vulnerability has been received by the NVD and has not been analyzed.
Description
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.
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | GitHub, Inc. |
Change History
0 change records found show changes
Quick Info
CVE Dictionary Entry:
CVE-2021-32845
NVD Published Date:
02/17/2023
NVD Last Modified:
02/17/2023
Source:
GitHub, Inc.