RHSA-2021:3703: Moderate: virt:av and virt-devel:av security and bug fix update

The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.Security Fix(es): QEMU: usbredir: free() call on invalid pointer in bufpalloc() (CVE-2021-3682) ntfs-3g: Out-of-bounds heap buffer access in ntfsgetattributevalue() due to incorrect check of bytesinuse value in MFT records (CVE-2021-33285) ntfs-3g: Heap buffer overflow triggered by a specially crafted Unicode string (CVE-2021-33286) ntfs-3g: Heap buffer overflow in ntfsattrpreadi() triggered by specially crafted NTFS attributes (CVE-2021-33287) ntfs-3g: Heap buffer overflow triggered by a specially crafted MFT section (CVE-2021-33289) ntfs-3g: Heap buffer overflow triggered by a specially crafted NTFS inode pathname (CVE-2021-35266) ntfs-3g: Stack buffer overflow triggered when correcting differences between MFT and MFTMirror sections (CVE-2021-35267) ntfs-3g: Heap buffer overflow in ntfsinoderealopen() triggered by a specially crafted NTFS inode (CVE-2021-35268) ntfs-3g: Heap buffer overflow in ntfsattrsetupflag() triggered by a specially crafted NTFS attribute from MFT (CVE-2021-35269) ntfs-3g: NULL pointer dereference in ntfsextentinodeopen() (CVE-2021-39251) ntfs-3g: Out-of-bounds read in ntfsielookup() (CVE-2021-39252) ntfs-3g: Out-of-bounds read in ntfsrunlistsmergei() (CVE-2021-39253) ntfs-3g: Integer overflow in memmove() leading to heap buffer overflow in ntfsattrrecordresize() (CVE-2021-39254) ntfs-3g: Out-of-bounds read ntfsattrfindinattrdef() triggered by an invalid attribute (CVE-2021-39255) ntfs-3g: Heap buffer overflow in ntfsinodelookupbyname() (CVE-2021-39256) ntfs-3g: Endless recursion from ntfsattrpwrite() triggered by an unallocated bitmap (CVE-2021-39257) ntfs-3g: Out-of-bounds reads in ntfsattrfind() and ntfsexternalattrfind() (CVE-2021-39258) ntfs-3g: Out-of-bounds access in ntfsinodelookupbyname() caused by an unsanitized attribute length (CVE-2021-39259) ntfs-3g: Out-of-bounds access in ntfsinodesyncstandardinformation() (CVE-2021-39260) ntfs-3g: Heap buffer overflow in ntfscompressedpwrite() (CVE-2021-39261) ntfs-3g: Out-of-bounds access in ntfsdecompress() (CVE-2021-39262) ntfs-3g: Heap buffer overflow in ntfsgetattributevalue() caused by an unsanitized attribute (CVE-2021-39263) QEMU: net: Infinite loop in loopback mode may lead to stack overflow (CVE-2021-3416) libvirt: Insecure sVirt label generation (CVE-2021-3631) libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API (CVE-2021-3667) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Bug Fix(es): SAP/3TB VM migration slowness [idle db] (BZ#1984458) Detecting TSC timer frequencies requires too many privileges (BZ#1996130)