vulnerability
SUSE: CVE-2021-3527: SUSE Linux Security Advisory
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:N/I:N/A:P) | May 26, 2021 | Aug 21, 2021 | Oct 26, 2022 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
May 26, 2021
Added
Aug 21, 2021
Modified
Oct 26, 2022
Description
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.
Solutions
suse-upgrade-qemususe-upgrade-qemu-accel-tcg-x86suse-upgrade-qemu-armsuse-upgrade-qemu-audio-alsasuse-upgrade-qemu-audio-osssuse-upgrade-qemu-audio-pasuse-upgrade-qemu-audio-sdlsuse-upgrade-qemu-audio-spicesuse-upgrade-qemu-block-curlsuse-upgrade-qemu-block-dmgsuse-upgrade-qemu-block-glustersuse-upgrade-qemu-block-iscsisuse-upgrade-qemu-block-nfssuse-upgrade-qemu-block-rbdsuse-upgrade-qemu-block-sshsuse-upgrade-qemu-chardev-baumsuse-upgrade-qemu-chardev-spicesuse-upgrade-qemu-extrasuse-upgrade-qemu-guest-agentsuse-upgrade-qemu-hw-display-qxlsuse-upgrade-qemu-hw-display-virtio-gpususe-upgrade-qemu-hw-display-virtio-gpu-pcisuse-upgrade-qemu-hw-display-virtio-vgasuse-upgrade-qemu-hw-s390x-virtio-gpu-ccwsuse-upgrade-qemu-hw-usb-hostsuse-upgrade-qemu-hw-usb-redirectsuse-upgrade-qemu-hw-usb-smartcardsuse-upgrade-qemu-ipxesuse-upgrade-qemu-ivshmem-toolssuse-upgrade-qemu-ksmsuse-upgrade-qemu-kvmsuse-upgrade-qemu-langsuse-upgrade-qemu-linux-usersuse-upgrade-qemu-microvmsuse-upgrade-qemu-ppcsuse-upgrade-qemu-s390suse-upgrade-qemu-s390xsuse-upgrade-qemu-seabiossuse-upgrade-qemu-sgabiossuse-upgrade-qemu-skibootsuse-upgrade-qemu-slofsuse-upgrade-qemu-testsuitesuse-upgrade-qemu-toolssuse-upgrade-qemu-ui-cursessuse-upgrade-qemu-ui-gtksuse-upgrade-qemu-ui-openglsuse-upgrade-qemu-ui-sdlsuse-upgrade-qemu-ui-spice-appsuse-upgrade-qemu-ui-spice-coresuse-upgrade-qemu-vgabiossuse-upgrade-qemu-vhost-user-gpususe-upgrade-qemu-x86suse-upgrade-xensuse-upgrade-xen-doc-htmlsuse-upgrade-xen-kmp-defaultsuse-upgrade-xen-kmp-paesuse-upgrade-xen-libssuse-upgrade-xen-libs-32bitsuse-upgrade-xen-toolssuse-upgrade-xen-tools-domu
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