Bug 2069625 (CVE-2022-1050) - CVE-2022-1050 QEMU: pvrdma: use-after-free issue in pvrdma_exec_cmd()
Summary: CVE-2022-1050 QEMU: pvrdma: use-after-free issue in pvrdma_exec_cmd()
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2022-1050
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2069627
Blocks: 2066710 2069629
TreeView+ depends on / blocked
 
Reported: 2022-03-29 09:45 UTC by Mauro Matteo Cascella
Modified: 2023-07-17 13:02 UTC (History)
26 users (show)

Fixed In Version: qemu 8.0.0
Doc Type: ---
Doc Text:
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to execute HW commands when shared buffers are not yet allocated, potentially leading to a use-after-free condition.
Clone Of:
Environment:
Last Closed: 2022-03-29 14:31:14 UTC
Embargoed:

Attachments (Terms of Use)

Description Mauro Matteo Cascella 2022-03-29 09:45:38 UTC 
Guest driver might execute HW commands when shared buffers are not yet allocated, potentially leading to a use-after-free condition.

Upstream patch:
https://lists.nongnu.org/archive/html/qemu-devel/2022-04/msg00273.html
Comment 1 Mauro Matteo Cascella 2022-03-29 09:58:04 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 2069627]
Comment 2 Product Security DevOps Team 2022-03-29 14:31:11 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-1050
Comment 3 Mauro Matteo Cascella 2023-01-02 11:21:08 UTC 
This is yet to be merged upstream:
https://lists.nongnu.org/archive/html/qemu-devel/2022-12/msg00943.html
Comment 4 Sylvain Beucler 2023-03-09 15:52:08 UTC 
Hi. This appears to have been merged a few days later :)
https://gitlab.com/qemu-project/qemu/-/commit/31c4b6fb0293e359f9ef8a61892667e76eea4c99
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