Hi, You are receiving an AlmaLinux Security update email because you subscribed to receive errata notifications from AlmaLinux. AlmaLinux: 8 Type: Security Severity: Moderate Release date: 2026-10-30 Summary: 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-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: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Full details, updated packages, references, and other related information: https://errata.almalinux.org/8/ALSA-2022-1759.html This message is automatically generated, please don’t reply. For further questions, please, contact us via the AlmaLinux community chat: https://chat.almalinux.org/. Want to change your notification settings? Sign in and manage mailing lists on https://lists.almalinux.org. Kind regards, AlmaLinux Team