CVE-2020-24352 describes an out-of-bounds memory access vulnerability in the ATI VGA device implementation within QEMU versions up to 5.1.0. Specifically, the ati_2d_blt() routine, triggered by MMIO write operations via ati_mm_write(), can be exploited. A malicious guest operating system can leverage this flaw to crash the QEMU process on the host, leading to a denial of service (DoS). The vulnerability has a CVSSv3.1 score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring low privileges, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.2.1CPE matchmatch criteria | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | ||
5.0.0CPE matchmatch criteria | cpe:2.3:a:qemu:qemu:5.0.0:rc0:*:*:*:*:*:* | ||
5.0.0CPE matchmatch criteria | cpe:2.3:a:qemu:qemu:5.0.0:rc1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2020-24352
Nov 10, 2020An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati_2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host resulting in a denial of service.
Oct 13, 2020QEMU: out-of-bounds read/write in ati-vga device emulation in ati_2d_blt()
Aug 14, 2020