CVE-2021-4206 — Integer Overflow or Wraparound in Qemu
Severity
8.2HIGHNVD
OSV6.1
EPSS
0.2%
top 62.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 29
Latest updateJun 21
Description
A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 1.5 | Impact: 6.0
🔴Vulnerability Details
4📋Vendor Advisories
4Microsoft▶
A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based↗2022-04-12
Debian▶
CVE-2021-4206: qemu - A flaw was found in the QXL display device emulation in QEMU. An integer overflo...↗2021