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RedhatCVE-2021-3638

HistoryMar 03, 2022 - 11:15 p.m.

CVE-2021-3638

2022-03-0323:15:08

CWE-787

redhat

web.nvd.nist.gov

124

ati vga

qemu

memory access

cve-2021-3638

nvd

security vulnerability

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

AI Score

6.4

Confidence

High

EPSS

0.001

Percentile

23.5%

JSON

An out-of-bounds memory access flaw was found in the ATI VGA device emulation of QEMU. This flaw occurs in the ati_2d_blt() routine while handling MMIO write operations when the guest provides invalid values for the destination display parameters. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

Affected configurations

Nvd

Vulners

Node

qemuqemuRange4.0.0–6.1.0

Node

fedoraprojectfedoraMatch36

fedoraprojectfedoraMatch37

VendorProductVersionCPE
qemuqemu*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
fedoraprojectfedora36cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
fedoraprojectfedora37cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
qemu	qemu	*	cpe:2.3:a:qemu:qemu::::::::
fedoraproject	fedora	36	cpe:2.3:o:fedoraproject:fedora:36:::::::*
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "QEMU",
    "versions": [
      {
        "version": "Affects qemu v4.0 to v6.1",
        "status": "affected"
      }
    ]
  }
]