PT-2019-6317 · Qemu+3 · Virglrenderer+3
Matthew Shao
+1
·
Published
2019-10-07
·
Updated
2024-06-15
·
CVE-2019-18389
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Virglrenderer versions through 0.8.0
Description
A heap-based buffer overflow issue in the
vrend renderer transfer write iov function allows guest OS users to cause a denial of service or achieve QEMU guest-to-host escape and code execution via VIRGL CCMD RESOURCE INLINE WRITE commands. This can potentially lead to unauthorized access to confidential data, disruption of data integrity, and service disruption.Recommendations
For versions through 0.8.0, update to a version later than 0.8.0 to resolve the issue. As a temporary workaround, consider restricting the use of the
vrend renderer transfer write iov function until a patch is available. Avoid using VIRGL CCMD RESOURCE INLINE WRITE commands in the affected API endpoint until the issue is resolved.Fix
DoS
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Suse
Virglrenderer