Executive Summary
Informations | |||
---|---|---|---|
Name | CVE-2021-3527 | First vendor Publication | 2021-05-26 |
Vendor | Cve | Last vendor Modification | 2022-09-30 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | |||
---|---|---|---|
Overall CVSS Score | 5.5 | ||
Base Score | 5.5 | Environmental Score | 5.5 |
impact SubScore | 3.6 | Temporal Score | 5.5 |
Exploitabality Sub Score | 1.8 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | None | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:P) | |||
---|---|---|---|
Cvss Base Score | 2.1 | Attack Range | Local |
Cvss Impact Score | 2.9 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3527 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-770 | Allocation of Resources Without Limits or Throttling |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
Date | Informations |
---|---|
2024-02-02 02:26:42 |
|
2024-02-01 12:24:13 |
|
2023-09-05 13:20:58 |
|
2023-09-05 01:23:44 |
|
2023-09-02 13:19:33 |
|
2023-09-02 01:24:06 |
|
2023-08-12 13:25:39 |
|
2023-08-12 01:23:20 |
|
2023-08-11 13:17:54 |
|
2023-08-11 01:24:06 |
|
2023-08-06 13:15:53 |
|
2023-08-06 01:23:04 |
|
2023-08-04 13:16:15 |
|
2023-08-04 01:23:25 |
|
2023-07-14 13:16:18 |
|
2023-07-14 01:23:13 |
|
2023-03-29 02:18:27 |
|
2023-03-28 12:23:26 |
|
2022-10-11 13:08:05 |
|
2022-10-11 01:22:53 |
|
2022-09-30 21:27:40 |
|
2022-09-05 13:27:41 |
|
2022-08-15 17:27:49 |
|
2021-11-17 17:23:14 |
|
2021-09-22 00:23:15 |
|
2021-09-03 00:23:05 |
|
2021-08-14 01:42:32 |
|
2021-08-05 01:43:15 |
|
2021-07-08 12:41:54 |
|
2021-06-15 01:40:12 |
|
2021-06-08 17:22:47 |
|
2021-06-05 00:22:47 |
|
2021-06-03 21:23:10 |
|
2021-06-01 17:22:49 |
|
2021-05-27 05:22:46 |
|