CVE-2021-3507

CVSS V2 Low 3.6 CVSS V3 Medium 6.1
Description
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
Overview
  • CVE ID
  • CVE-2021-3507
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2021-05-06T16:15:07
  • Last Modified Date
  • 2023-02-12T23:41:11
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* 1 OR 6.0.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:N/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 3.6
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • LOW
  • Base Score
  • 6.1
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 4.2
References
Reference URL Reference Tags
https://access.redhat.com/errata/RHSA-2022:7472
https://access.redhat.com/errata/RHSA-2022:7967
https://access.redhat.com/security/cve/CVE-2021-3507
https://bugzilla.redhat.com/show_bug.cgi?id=1951118 Exploit Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20210528-0005/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3507
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3507
History
Created Old Value New Value Data Type Notes
2022-05-10 16:14:11 Added to TrackCVE
2022-12-05 01:40:12 2021-05-06T16:15Z 2021-05-06T16:15:07 CVE Published Date updated
2022-12-05 01:40:12 2022-10-07T20:47:10 CVE Modified Date updated
2022-12-05 01:40:12 Analyzed Vulnerability Status updated
2022-12-05 01:40:17 References updated
2023-02-02 23:11:59 2023-02-02T21:21:02 CVE Modified Date updated
2023-02-02 23:11:59 Analyzed Modified Vulnerability Status updated
2023-02-02 23:11:59 A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory. A heap buffer overflow was found in the floppy disk emulator of QEMU. It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory. Description updated
2023-02-02 23:12:00 References updated
2023-02-13 00:12:37 2023-02-12T23:41:11 CVE Modified Date updated
2023-02-13 00:12:37 Weakness Enumeration update
2023-02-13 00:12:37 A heap buffer overflow was found in the floppy disk emulator of QEMU. It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory. A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory. Description updated