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.
| Reporter | Title | Published | Views | Family All 156 |
|---|---|---|---|---|
 | CVE-2021-3682 | 5 Aug 202120:15 | – | attackerkb |
 | CVE-2021-3682 | 5 Aug 202119:51 | – | alpinelinux |
 | Astra Linux – Vulnerability in Qemu | 20 May 202605:53 | – | astralinux |
 | The vulnerability of QEMU’s emulation of USB devices allows a perpetrator to gain access to confidential data, compromise its integrity, and cause service failures. | 14 Sep 202200:00 | – | bdu_fstec |
 | CVE-2021-3682 affecting package qemu-kvm 4.2.0-48 | 17 Aug 202115:27 | – | cbl_mariner |
| CVE-2021-3682 affecting package qemu for versions less than 6.2.0-2 | 3 Jun 202217:54 | – | cbl_mariner |
 | CVE-2021-3682 | 6 Aug 202100:31 | – | circl |
 | QEMU 安全漏洞 | 5 Aug 202100:00 | – | cnnvd |
 | CVE-2021-3682 | 5 Aug 202119:51 | – | cve |
 | CVE-2021-3682 | 5 Aug 202119:51 | – | cvelist |
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10 Mar 2023 08:00Current
7High risk
Vulners AI Score7
CVSS 26
CVSS 3.18.5
EPSS0.0288