cve-2021-3527
Vulnerability from cvelistv5
Published
2021-05-26 21:13
Modified
2024-08-03 17:01
Severity ?
Summary
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.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1955695Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524cPatch, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2021/09/msg00000.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/202208-27Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20210708-0008/Third Party Advisory
secalert@redhat.comhttps://www.openwall.com/lists/oss-security/2021/05/05/5Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1955695Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524cPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/09/msg00000.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-27Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210708-0008/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2021/05/05/5Mailing List, Patch, Third Party Advisory
Impacted products
Vendor Product Version
n/a QEMU Version: all versions
Show details on NVD website

To clipboard 

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