Release of Invalid Pointer or Reference Affecting qemu package, versions <2.0.0+dfsg-2ubuntu1.47+esm2
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Test your applications- Snyk ID SNYK-UBUNTU1404-QEMU-1626847
- published 6 Aug 2021
- disclosed 5 Aug 2021
Introduced: 5 Aug 2021
CVE-2021-3682 Open this link in a new tabHow to fix?
Upgrade Ubuntu:14.04 qemu to version 2.0.0+dfsg-2ubuntu1.47+esm2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2021-3682
- https://security.netapp.com/advisory/ntap-20210902-0006/
- https://www.debian.org/security/2021/dsa-4980
- https://bugzilla.redhat.com/show_bug.cgi?id=1989651
- https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html
- https://security.gentoo.org/glsa/202208-27
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html