Amazon Linux 2 Security Advisory: ALAS2-2025-3115
Advisory Released Date: 2026-01-05
Advisory Updated Date: 2026-01-05
Severity:
Medium
Issue Overview:
A flaw was discovered in libvirt in the XML file processing. More specifically, the parsing of user provided XML files was performed before the ACL checks. A malicious user with limited permissions could exploit this flaw by submitting a specially crafted XML file, causing libvirt to allocate too much memory on the host. The excessive memory consumption could lead to a libvirt process crash on the host, resulting in a denial-of-service condition. (CVE-2025-12748)
Affected Packages:
libvirt
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libvirt or yum update --advisory ALAS2-2025-3115 to update your system.
New Packages:
aarch64:
libvirt-4.5.0-36.amzn2.3.2.aarch64
libvirt-docs-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-config-network-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-config-nwfilter-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-network-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-nwfilter-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-nodedev-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-interface-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-secret-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-core-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-logical-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-disk-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-scsi-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-iscsi-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-mpath-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-storage-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-qemu-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-driver-lxc-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-kvm-4.5.0-36.amzn2.3.2.aarch64
libvirt-daemon-lxc-4.5.0-36.amzn2.3.2.aarch64
libvirt-client-4.5.0-36.amzn2.3.2.aarch64
libvirt-libs-4.5.0-36.amzn2.3.2.aarch64
libvirt-admin-4.5.0-36.amzn2.3.2.aarch64
libvirt-bash-completion-4.5.0-36.amzn2.3.2.aarch64
libvirt-login-shell-4.5.0-36.amzn2.3.2.aarch64
libvirt-devel-4.5.0-36.amzn2.3.2.aarch64
libvirt-lock-sanlock-4.5.0-36.amzn2.3.2.aarch64
libvirt-nss-4.5.0-36.amzn2.3.2.aarch64
libvirt-debuginfo-4.5.0-36.amzn2.3.2.aarch64
i686:
libvirt-4.5.0-36.amzn2.3.2.i686
libvirt-docs-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-config-network-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-config-nwfilter-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-network-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-nwfilter-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-nodedev-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-interface-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-secret-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-core-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-logical-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-disk-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-scsi-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-iscsi-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-mpath-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-storage-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-driver-lxc-4.5.0-36.amzn2.3.2.i686
libvirt-daemon-lxc-4.5.0-36.amzn2.3.2.i686
libvirt-client-4.5.0-36.amzn2.3.2.i686
libvirt-libs-4.5.0-36.amzn2.3.2.i686
libvirt-admin-4.5.0-36.amzn2.3.2.i686
libvirt-bash-completion-4.5.0-36.amzn2.3.2.i686
libvirt-login-shell-4.5.0-36.amzn2.3.2.i686
libvirt-devel-4.5.0-36.amzn2.3.2.i686
libvirt-nss-4.5.0-36.amzn2.3.2.i686
libvirt-debuginfo-4.5.0-36.amzn2.3.2.i686
src:
libvirt-4.5.0-36.amzn2.3.2.src
x86_64:
libvirt-4.5.0-36.amzn2.3.2.x86_64
libvirt-docs-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-config-network-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-config-nwfilter-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-network-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-nwfilter-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-nodedev-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-interface-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-secret-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-core-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-logical-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-disk-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-scsi-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-iscsi-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-mpath-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-gluster-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-rbd-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-storage-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-qemu-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-driver-lxc-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-kvm-4.5.0-36.amzn2.3.2.x86_64
libvirt-daemon-lxc-4.5.0-36.amzn2.3.2.x86_64
libvirt-client-4.5.0-36.amzn2.3.2.x86_64
libvirt-libs-4.5.0-36.amzn2.3.2.x86_64
libvirt-admin-4.5.0-36.amzn2.3.2.x86_64
libvirt-bash-completion-4.5.0-36.amzn2.3.2.x86_64
libvirt-login-shell-4.5.0-36.amzn2.3.2.x86_64
libvirt-devel-4.5.0-36.amzn2.3.2.x86_64
libvirt-lock-sanlock-4.5.0-36.amzn2.3.2.x86_64
libvirt-nss-4.5.0-36.amzn2.3.2.x86_64
libvirt-debuginfo-4.5.0-36.amzn2.3.2.x86_64