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CVE-2021-3682

UNKNOWN
Published 2021-08-05T19:51:26
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Expert Analysis

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No CVSS data available

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-2w4j-r5v6-3vgr

Advisory Details

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.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-3682
WEB https://bugzilla.redhat.com/show_bug.cgi?id=1989651
WEB https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
WEB https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
WEB https://security.gentoo.org/glsa/202208-27
WEB https://security.netapp.com/advisory/ntap-20210902-0006
WEB https://www.debian.org/security/2021/dsa-4980

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: August 16, 2022

References

https://bugzilla.redhat.com/show_bug.cgi?id=1989651
https://security.netapp.com/advisory/ntap-20210902-0006/
https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
https://www.debian.org/security/2021/dsa-4980
https://security.gentoo.org/glsa/202208-27
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Published: 2021-08-05T19:51:26
Last Modified: 2024-08-03T17:01:07.707Z
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