CVE-2019-18389: Buffer Overflow
First published: Fri Oct 25 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Freedesktop Virglrenderer | <=0.8.0 | |
| openSUSE | =15.1 | |
| Red Hat Enterprise Linux | =8.0 | |
| Debian Debian Linux | =10.0 |
Remedy
https://gitlab.freedesktop.org/virgl/virglrenderer/commit/cbc8d8b75be360236cada63784046688aeb6d921
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Reference Links
- https://gitlab.freedesktop.org/virgl/virglrenderer/merge_requests/314/diffs?commit_id=9c280a28651507e6ef87b17b90d47b6af3a4ab7d
- https://gitlab.freedesktop.org/virgl/virglrenderer/commit/cbc8d8b75be360236cada63784046688aeb6d921
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1784502
- https://bugzilla.redhat.com/show_bug.cgi?id=1765577
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00028.html
- https://access.redhat.com/security/cve/cve-2019-18389
- https://lists.debian.org/debian-lts-announce/2022/12/msg00017.html
Frequently Asked Questions
What is CVE-2019-18389?
CVE-2019-18389 is a vulnerability in the vrend_renderer_transfer_write_iov function in virglrenderer through 0.8.0 that allows guest OS users to cause a denial of service or QEMU guest-to-host escape and code execution.
How does CVE-2019-18389 impact the affected software?
CVE-2019-18389 can result in a denial of service (DoS) or allow guest OS users to escape the QEMU host and execute arbitrary code.
Which software versions are affected by CVE-2019-18389?
Versions up to and including 0.8.0 of virglrenderer, openSUSE Leap 15.1, Redhat Enterprise Linux 8.0, and Debian Debian Linux 10.0 are affected.
What is the severity of CVE-2019-18389?
CVE-2019-18389 has a severity rating of 7.8 (high).
How can I mitigate the vulnerability in CVE-2019-18389?
To mitigate CVE-2019-18389, it is recommended to update to a version of virglrenderer beyond 0.8.0, if available, or apply the relevant security patches provided by the software vendors.
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