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

2026-10-03T06:13:22.211189+00:00

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…

Withdrawn: BELL-CVE-2021-4158 — CVE-2021-4158 does not affect BellSoft software

2026-10-03T06:13:22.211441+00:00

Withdrawn by the publisher.

cnvd-2022-84162

2026-10-03T06:13:22.211464+00:00

cnvd-2022-84162

EUVD-2026-21331

2026-10-03T06:13:22.211480+00:00

EUVD-2026-21331

fkie_cve-2021-4158

2026-10-03T06:13:22.211491+00:00

A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

GHSA-9p4w-6fpq-fpm6

2026-10-03T06:13:22.211513+00:00

gsd-2021-4158

2026-10-03T06:13:22.211528+00:00

gsd-2021-4158

msrc_CVE-2021-4158 — A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious privileged user within the guest could…

2026-10-03T06:13:22.211538+00:00

msrc_CVE-2021-4158

OESA-2022-1772 — qemu security update

2026-10-03T06:13:22.211556+00:00

Affected: openEuler:22.03-LTS: qemu

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fix(es): A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.(CVE-2021-4158)

A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This issue allows a malicious user to trigger CVE-2018-13405 to obtain sensitive information or potentially escalate their privileges on the system.(CVE-2022-0358)

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

2026-10-03T06:13:22.211582+00:00

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…

RHSA-2022:7967 — Red Hat Security Advisory: qemu-kvm security, bug fix, and enhancement update

2026-10-03T06:13:22.211643+00:00

QEMU: fdc: heap buffer overflow in DMA read data transfers QEMU: intel-hda: segmentation fault due to stack overflow QEMU: hcd-ehci: DMA reentrancy issue leads to use-after-free QEMU: NULL pointer dereference in pci_write() in hw/acpi/pcihp.c

UBUNTU-CVE-2021-4158

2026-10-03T06:13:22.211664+00:00

Affected: Ubuntu:22.04:LTS: qemu