virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

Kernel-based Virtual Machine (KVM) offers a full virtualization solution for
Linux on numerous hardware platforms. The virt:rhel module contains packages
which provide user-space components used to run virtual machines using KVM. The
packages also provide APIs for managing and interacting with the virtualized
systems.

The following packages have been upgraded to a later upstream version: qemu-kvm
(6.2.0), libvirt (8.0.0), libvirt-python (8.0.0), perl-Sys-Virt (8.0.0), seabios
(1.15.0), libtpms (0.9.1).

Security Fix(es):

* QEMU: virtio-net: heap use-after-free in virtio_net_receive_rcu
(CVE-2021-3748)
* 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)
* ntfs-3g: Heap buffer overflow triggered by a specially crafted Unicode
string (CVE-2021-33286)
* ntfs-3g: Heap buffer overflow in ntfs_attr_pread_i() 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 ntfs_inode_real_open() triggered by a
specially crafted NTFS inode (CVE-2021-35268)
* ntfs-3g: Heap buffer overflow in ntfs_attr_setup_flag() triggered by a
specially crafted NTFS attribute from MFT (CVE-2021-35269)
* ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open()
(CVE-2021-39251)
* ntfs-3g: Out-of-bounds read in ntfs_ie_lookup() (CVE-2021-39252)
* ntfs-3g: Out-of-bounds read in ntfs_runlists_merge_i() (CVE-2021-39253)
* ntfs-3g: Integer overflow in memmove() leading to heap buffer overflow in
ntfs_attr_record_resize() (CVE-2021-39254)
* ntfs-3g: Out-of-bounds read ntfs_attr_find_in_attrdef() triggered by an
invalid attribute (CVE-2021-39255)
* ntfs-3g: Heap buffer overflow in ntfs_inode_lookup_by_name()
(CVE-2021-39256)
* ntfs-3g: Endless recursion from ntfs_attr_pwrite() triggered by an
unallocated bitmap (CVE-2021-39257)
* ntfs-3g: Out-of-bounds reads in ntfs_attr_find() and
ntfs_external_attr_find() (CVE-2021-39258)
* ntfs-3g: Out-of-bounds access in ntfs_inode_lookup_by_name() caused by an
unsanitized attribute length (CVE-2021-39259)
* ntfs-3g: Out-of-bounds access in ntfs_inode_sync_standard_information()
(CVE-2021-39260)
* ntfs-3g: Heap buffer overflow in ntfs_compressed_pwrite() (CVE-2021-39261)
* ntfs-3g: Out-of-bounds access in ntfs_decompress() (CVE-2021-39262)
* ntfs-3g: Heap buffer overflow in ntfs_get_attribute_value() caused by an
unsanitized attribute (CVE-2021-39263)
* libnbd: nbdcopy: missing error handling may create corrupted destination
image (CVE-2022-0485)
* hivex: stack overflow due to recursive call of _get_children()
(CVE-2021-3622)
* nbdkit: NBD_OPT_STRUCTURED_REPLY injection on STARTTLS (CVE-2021-3716)
* libvirt: segmentation fault during VM shutdown can lead to vdsm hang
(CVE-2021-3975)
* QEMU: NULL pointer dereference in mirror_wait_on_conflicts() in
block/mirror.c (CVE-2021-4145)
* QEMU: NULL pointer dereference in pci_write() in hw/acpi/pcihp.c
(CVE-2021-4158)
* QEMU: block: fdc: null pointer dereference may lead to guest crash
(CVE-2021-20196)

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.

Additional Changes:

CVE-2021-3622
A flaw was found in the hivex library. This flaw allows an attacker to input a
specially crafted Windows Registry (hive) file, which would cause hivex to
recursively call the _get_children() function, leading to a stack overflow. The
highest threat from this vulnerability is to system availability.
CVE-2021-3716
A flaw was found in nbdkit due to to improperly caching plaintext state across
the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject
a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client
sends to the server, potentially leading the client to terminate the NBD
session. The highest threat from this vulnerability is to system availability.
CVE-2021-3748
A use-after-free vulnerability was found in the virtio-net device of QEMU. It
could occur when the descriptor's address belongs to the non direct access
region, due to num_buffers being set after the virtqueue elem has been unmapped.
A malicious guest could use this flaw to crash QEMU, resulting in a denial of
service condition, or potentially execute code on the host with the privileges
of the QEMU process.
CVE-2021-3975
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-4145
A NULL pointer dereference issue was found in the block mirror layer of QEMU in
versions prior to 6.2.0. The `self` pointer is dereferenced in
mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious
unprivileged user within the guest could use this flaw to crash the QEMU process
on the host when writing data reaches the threshold of mirroring node.
CVE-2021-4158
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-20196
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU.
This issue occurs while processing read/write ioport commands if the selected
floppy drive is not initialized with a block device. This flaw allows a
privileged guest user to crash the QEMU process on the host, resulting in a
denial of service. The highest threat from this vulnerability is to system
availability.
CVE-2021-33285
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is
supplied to the function ntfs_get_attribute_value, a heap buffer overflow can
occur allowing for memory disclosure or denial of service. The vulnerability is
caused by an out-of-bound buffer access which can be triggered by mounting a
crafted ntfs partition. The root cause is a missing consistency check after
reading an MFT record : the "bytes_in_use" field should be less than the
"bytes_allocated" field. When it is not, the parsing of the records proceeds
into the wild.
CVE-2021-33286
In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is
supplied in an NTFS image a heap buffer overflow can occur and allow for code
execution.
CVE-2021-33287
In NTFS-3G versions < 2021.8.22, when specially crafted NTFS attributes are read
in the function ntfs_attr_pread_i, a heap buffer overflow can occur and allow
for writing to arbitrary memory or denial of service of the application.
CVE-2021-33289
In NTFS-3G versions < 2021.8.22, when a specially crafted MFT section is
supplied in an NTFS image a heap buffer overflow can occur and allow for code
execution.
CVE-2021-35266
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode pathname is
supplied in an NTFS image a heap buffer overflow can occur resulting in memory
disclosure, denial of service and even code execution.
CVE-2021-35267
NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting
differences in the MFT and MFTMirror allowing for code execution or escalation
of privileges when setuid-root.
CVE-2021-35268
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode is loaded
in the function ntfs_inode_real_open, a heap buffer overflow can occur allowing
for code execution and escalation of privileges.
CVE-2021-35269
NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute from the
MFT is setup in the function ntfs_attr_setup_flag, a heap buffer overflow can
occur allowing for code execution and escalation of privileges.
CVE-2021-39251
A crafted NTFS image can cause a NULL pointer dereference in
ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
CVE-2021-39252
A crafted NTFS image can cause an out-of-bounds read in ntfs_ie_lookup in
NTFS-3G < 2021.8.22.
CVE-2021-39253
A crafted NTFS image can cause an out-of-bounds read in ntfs_runlists_merge_i in
NTFS-3G < 2021.8.22.
CVE-2021-39254
A crafted NTFS image can cause an integer overflow in memmove, leading to a
heap-based buffer overflow in the function ntfs_attr_record_resize, in NTFS-3G <
2021.8.22.
CVE-2021-39255
A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid
attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.
CVE-2021-39256
A crafted NTFS image can cause a heap-based buffer overflow in
ntfs_inode_lookup_by_name in NTFS-3G < 2021.8.22.
CVE-2021-39257
A crafted NTFS image with an unallocated bitmap can lead to a endless recursive
function call chain (starting from ntfs_attr_pwrite), causing stack consumption
in NTFS-3G < 2021.8.22.
CVE-2021-39258
A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and
ntfs_external_attr_find in NTFS-3G < 2021.8.22.
CVE-2021-39259
A crafted NTFS image can trigger an out-of-bounds access, caused by an
unsanitized attribute length in ntfs_inode_lookup_by_name, in NTFS-3G <
2021.8.22.
CVE-2021-39260
A crafted NTFS image can cause an out-of-bounds access in
ntfs_inode_sync_standard_information in NTFS-3G < 2021.8.22.
CVE-2021-39261
A crafted NTFS image can cause a heap-based buffer overflow in
ntfs_compressed_pwrite in NTFS-3G < 2021.8.22.
CVE-2021-39262
A crafted NTFS image can cause an out-of-bounds access in ntfs_decompress in
NTFS-3G < 2021.8.22.
CVE-2021-39263
A crafted NTFS image can trigger a heap-based buffer overflow, caused by an
unsanitized attribute in ntfs_get_attribute_value, in NTFS-3G < 2021.8.22.
CVE-2022-0485
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.

Modularity name: virt
Stream name: rhel