Bug 1765577 (CVE-2019-18389) - CVE-2019-18389 virglrenderer: heap buffer overflow in the vrend_renderer_transfer_write_iov function
Summary: CVE-2019-18389 virglrenderer: heap buffer overflow in the vrend_renderer_tran...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-18389
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1784502 1784503
Blocks: 1765598
TreeView+ depends on / blocked
 
Reported: 2019-10-25 13:17 UTC by Marian Rehak
Modified: 2021-10-25 09:54 UTC (History)
4 users (show)

Fixed In Version:
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Doc Text:
A heap-based buffer overflow flaw was found in virglrenderer. The vrend_renderer_transfer_write_iov function allows guest OS users to cause a denial of service or a QEMU guest-to-host escape with code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as to system availability.
Clone Of:
Environment:
Last Closed: 2021-10-25 09:54:25 UTC
Embargoed:

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Description Marian Rehak 2019-10-25 13:17:56 UTC 
A heap-based buffer overflow in the vrend_renderer_transfer_write_iov function in vrend_renderer.c in virglrenderer through 0.8.0 allows guest OS users to cause a denial of service, or QEMU guest-to-host escape and code execution, via VIRGL_CCMD_RESOURCE_INLINE_WRITE commands.

Upstream Issue:

https://gitlab.freedesktop.org/virgl/virglrenderer/merge_requests/314/diffs?commit_id=9c280a28651507e6ef87b17b90d47b6af3a4ab7d
Comment 1 Marian Rehak 2019-10-25 13:20:18 UTC 
Upstream patch:

https://gitlab.freedesktop.org/virgl/virglrenderer/commit/cbc8d8b75be360236cada63784046688aeb6d921
Comment 2 Prasad Pandit 2019-12-17 15:38:20 UTC 
Created virglrenderer tracking bugs for this issue:

Affects: fedora-all [bug 1784502]
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