CVE-2021-3682

CVSS V2 Medium 6 CVSS V3 High 8.5
Description
A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
Overview
  • CVE ID
  • CVE-2021-3682
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-08-05T20:15:09
  • Last Modified Date
  • 2023-03-31T18:26:51
Weakness Enumerations
CWE URL
CWE-763 http://cwe.mitre.org/data/definitions/763.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* 1 OR 6.1.0
cpe:2.3:a:qemu:qemu:6.1.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:qemu:qemu:6.1.0:rc1:*:*:*:*:*:* 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
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:S/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6
  • Severity
  • MEDIUM
  • Exploitability Score
  • 6.8
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1989651 Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202208-27 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0006/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4980 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3682
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3682
History
Created Old Value New Value Data Type Notes
2022-05-10 06:51:22 Added to TrackCVE
2022-12-05 07:30:16 2021-08-05T20:15Z 2021-08-05T20:15:09 CVE Published Date updated
2022-12-05 07:30:16 2022-10-25T20:28:11 CVE Modified Date updated
2022-12-05 07:30:16 Analyzed Vulnerability Status updated
2022-12-05 07:30:20 References updated
2023-03-31 17:10:24 Analyzed Undergoing Analysis Vulnerability Status updated
2023-04-01 01:09:59 2023-03-31T18:26:51 CVE Modified Date updated
2023-04-01 01:09:59 Undergoing Analysis Analyzed Vulnerability Status updated