A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsasfreerequest() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-block-extra" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-block-extra-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-guest-agent" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-guest-agent-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-kvm" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-arm" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-arm-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-common" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-common-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-mips" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-mips-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-misc" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-misc-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-ppc" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-ppc-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-s390x" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-s390x-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-sparc" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-sparc-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-x86" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-system-x86-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-user" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-user-binfmt" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-user-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-user-static" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-user-static-dbgsym" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-utils" }, { "binary_version": "1:2.11+dfsg-1ubuntu7.37", "binary_name": "qemu-utils-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-block-extra" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-block-extra-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-guest-agent" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-guest-agent-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-kvm" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-arm" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-arm-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-common" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-common-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-data" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-gui" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-gui-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-mips" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-mips-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-misc" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-misc-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-ppc" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-ppc-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-s390x" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-s390x-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-sparc" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-sparc-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-x86" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-x86-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-x86-microvm" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-x86-microvm-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-x86-xen" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-system-x86-xen-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-user" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-user-binfmt" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-user-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-user-static" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-user-static-dbgsym" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-utils" }, { "binary_version": "1:4.2-3ubuntu6.17", "binary_name": "qemu-utils-dbgsym" } ] }