Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in the get_refcount function in qcow2-refcount.c, or (7) a large number of blocks in the cloop_open function in cloop.c, which trigger buffer overflows, memory corruption, large memory allocations and out-of-bounds read and writes.
CVSS Details
- CVSS 3.0 Base Score: 7
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade qemu-guest-agentUpgrade qemu-imgUpgrade qemu-kvmUpgrade qemu-kvm-tools | Aug 17, 2018 | Apr 22, 2014 |
| Debian | — | Upgrade qemuUpgrade qemu-kvm | Jul 30, 2024 | Aug 10, 2017 |
| Gentoo Linux | — | Upgrade app-emulation/qemu. | Oct 30, 2017 | Aug 10, 2017 |
| Oracle_linux | — | Upgrade qemu-kvm-toolsUpgrade qemu-guest-agentUpgrade qemu-imgUpgrade qemu-kvm | Oct 16, 2024 | Aug 10, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Aug 10, 2017 |
| Suse | — | Upgrade qemu-ppcUpgrade qemu-guest-agentUpgrade qemuUpgrade qemu-block-sshUpgrade qemu-block-curlUpgrade qemu-block-iscsiUpgrade qemu-toolsUpgrade qemu-kvmUpgrade qemu-block-rbdUpgrade qemu-ipxeUpgrade qemu-langUpgrade kvmUpgrade qemu-vgabiosUpgrade qemu-ksmUpgrade qemu-armUpgrade qemu-s390Upgrade qemu-x86Upgrade qemu-seabiosUpgrade qemu-sgabios | Dec 18, 2015 | May 8, 2014 |
| Ubuntu | — | Upgrade qemu-system-miscUpgrade qemu-systemUpgrade qemu-system-ppcUpgrade qemu-system-mipsUpgrade qemu-system-sparcUpgrade qemu-system-aarch64Upgrade qemu-system-x86Upgrade qemu-system-armUpgrade qemu-kvm | Nov 8, 2024 | Aug 10, 2017 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub