CVE-2021-3713
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.6%
exploitation probability
0.6%top 55% of all CVEs
observed exploitation
nono source reports it
An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host.
Affected products
n/a · QEMUReferences
https://bugzilla.redhat.com/show_bug.cgi?id=1994640https://lists.debian.org/debian-lts-announce/2021/09/msg00000.htmlhttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlhttps://security.gentoo.org/glsa/202208-27https://security.netapp.com/advisory/ntap-20210923-0006/https://www.debian.org/security/2021/dsa-4980