SecuritySpace - CVE-2021-3682

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CVE ID: CVE-2021-3682

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.

Test IDs: None available

Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2021-3682
Debian Security Information: DSA-4980 (Google Search)
https://www.debian.org/security/2021/dsa-4980
https://bugzilla.redhat.com/show_bug.cgi?id=1989651
https://bugzilla.redhat.com/show_bug.cgi?id=1989651
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html

CVE ID:	CVE-2021-3682
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.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-3682 Debian Security Information: DSA-4980 (Google Search) https://www.debian.org/security/2021/dsa-4980 https://bugzilla.redhat.com/show_bug.cgi?id=1989651 https://bugzilla.redhat.com/show_bug.cgi?id=1989651 https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html