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

First published: Thu Sep 30 2021(Updated: )

The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.<br>Security Fix(es):<br><li> QEMU: usbredir: free() call on invalid pointer in bufp_alloc() (CVE-2021-3682)</li> <li> ntfs-3g: Out-of-bounds heap buffer access in ntfs_get_attribute_value() due to incorrect check of bytes_in_use value in MFT records (CVE-2021-33285)</li> <li> ntfs-3g: Heap buffer overflow triggered by a specially crafted Unicode string (CVE-2021-33286)</li> <li> ntfs-3g: Heap buffer overflow in ntfs_attr_pread_i() triggered by specially crafted NTFS attributes (CVE-2021-33287)</li> <li> ntfs-3g: Heap buffer overflow triggered by a specially crafted MFT section (CVE-2021-33289)</li> <li> ntfs-3g: Heap buffer overflow triggered by a specially crafted NTFS inode pathname (CVE-2021-35266)</li> <li> ntfs-3g: Stack buffer overflow triggered when correcting differences between MFT and MFTMirror sections (CVE-2021-35267)</li> <li> ntfs-3g: Heap buffer overflow in ntfs_inode_real_open() triggered by a specially crafted NTFS inode (CVE-2021-35268)</li> <li> ntfs-3g: Heap buffer overflow in ntfs_attr_setup_flag() triggered by a specially crafted NTFS attribute from MFT (CVE-2021-35269)</li> <li> ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open() (CVE-2021-39251)</li> <li> ntfs-3g: Out-of-bounds read in ntfs_ie_lookup() (CVE-2021-39252)</li> <li> ntfs-3g: Out-of-bounds read in ntfs_runlists_merge_i() (CVE-2021-39253)</li> <li> ntfs-3g: Integer overflow in memmove() leading to heap buffer overflow in ntfs_attr_record_resize() (CVE-2021-39254)</li> <li> ntfs-3g: Out-of-bounds read ntfs_attr_find_in_attrdef() triggered by an invalid attribute (CVE-2021-39255)</li> <li> ntfs-3g: Heap buffer overflow in ntfs_inode_lookup_by_name() (CVE-2021-39256)</li> <li> ntfs-3g: Endless recursion from ntfs_attr_pwrite() triggered by an unallocated bitmap (CVE-2021-39257)</li> <li> ntfs-3g: Out-of-bounds reads in ntfs_attr_find() and ntfs_external_attr_find() (CVE-2021-39258)</li> <li> ntfs-3g: Out-of-bounds access in ntfs_inode_lookup_by_name() caused by an unsanitized attribute length (CVE-2021-39259)</li> <li> ntfs-3g: Out-of-bounds access in ntfs_inode_sync_standard_information() (CVE-2021-39260)</li> <li> ntfs-3g: Heap buffer overflow in ntfs_compressed_pwrite() (CVE-2021-39261)</li> <li> ntfs-3g: Out-of-bounds access in ntfs_decompress() (CVE-2021-39262)</li> <li> ntfs-3g: Heap buffer overflow in ntfs_get_attribute_value() caused by an unsanitized attribute (CVE-2021-39263)</li> <li> QEMU: net: Infinite loop in loopback mode may lead to stack overflow (CVE-2021-3416)</li> <li> libvirt: Insecure sVirt label generation (CVE-2021-3631)</li> <li> libvirt: Improper locking on ACL failure in virStoragePoolLookupByTargetPath API (CVE-2021-3667)</li> 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.<br>Bug Fix(es):<br><li> SAP/3TB VM migration slowness [idle db] (BZ#1984458)</li> <li> Detecting TSC timer frequencies requires too many privileges (BZ#1996130)</li>

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

• agent/description
• agent/event
• agent/first-publish-date
• agent/last-modified-date
• agent/references
• agent/remedy
• agent/severity
• agent/softwarecombine
• agent/tags
• agent/title
• agent/type
• agent/weakness
• collector/redhat-errata
• anchor-id/RHSA-2021:3703
• package-manager/redhat