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ALSA-2022:1759 — Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

Affected: AlmaLinux:8: SLOF, AlmaLinux:8: hivex, AlmaLinux:8: hivex-devel, AlmaLinux:8: libguestfs, AlmaLinux:8: libguestfs-appliance, AlmaLinux:8: libguestfs-bash-completion, AlmaLinux:8: libguestfs-devel, AlmaLinux:8: libguestfs-gfs2, AlmaLinux:8: libguestfs-gobject, AlmaLinux:8: libguestfs-gobject-devel and 120 more

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). (BZ#1997410, BZ#2012802, BZ#2012806, BZ#2012813, BZ#2018392, BZ#2027716, BZ#2029355)

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-202…

EUVD-2026-21298

fkie_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.

GHSA-j9qg-fc9x-6r3r

gsd-2021-4145

msrc_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` poi…

msrc_CVE-2021-4145

RHSA-2022:1759 — Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

hivex: stack overflow due to recursive call of _get_children() nbdkit: NBD_OPT_STRUCTURED_REPLY injection on STARTTLS QEMU: virtio-net: heap use-after-free in virtio_net_receive_rcu libvirt: segmentation fault during VM shutdown can lead to vdsm hang QEMU: NULL pointer dereference in mirror_wait_on_conflicts() in block/mirror.c QEMU: NULL pointer dereference in pci_write() in hw/acpi/pcihp.c QEMU: block: fdc: null pointer dereference may lead to guest crash 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 ntfs-3g: Heap buffer overflow triggered by a specially crafted Unicode string ntfs-3g: Heap buffer overflow in ntfs_attr_pread_i() triggered by specially crafted NTFS attributes ntfs-3g: Heap buffer overflow triggered by a specially crafted MFT section ntfs-3g: Heap buffer overflow triggered by a specially crafted NTFS inode pathname ntfs-3g: Stack buffer overflow triggered when correcting differences between MFT and MFTMirror sections ntfs-3g: Heap buffer overflow in ntfs_inode_real_open() triggered by a specially crafted NTFS inode ntfs-3g: Heap buffer overflow in ntfs_attr_setup_flag() triggered by a specially crafted NTFS attribute from MFT ntfs-3g: NULL pointer dereference in ntfs_extent_inode_open() ntfs-3g: Out-of-bounds read in ntfs_ie_lookup() ntfs-3g: Out-of-bounds read in ntfs_runlists_merge_i() ntfs-3g: Integer overflow in memmove() leading to heap buffer overflow in ntfs_attr_rec…

WID-SEC-W-2022-1125 — QEMU: Schwachstelle ermöglicht Denial of Service

Ein lokaler Angreifer kann eine Schwachstelle in QEMU ausnutzen, um einen Denial of Service Angriff durchzuführen.