Mô tả CVE

The pciej_write function in hw/acpi_piix4.c in the PIIX4 Power Management emulation in qemu-kvm does not check if a device is hotpluggable before unplugging the PCI-ISA bridge, which allows privileged guest users to cause a denial of service (guest crash) and possibly execute arbitrary code by sending a crafted value to the 0xae08 (PCI_EJ_BASE) I/O port, which leads to a use-after-free related to "active qemu timers."

Thông tin CVE

Điểm yếu liên quan

CWE-ID	Tên điểm yếu	Nguồn
CWE-20	Improper Input Validation The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Số liệu

Số liệu	Điểm	Mức độ nghiêm trọng	CVSS Vector	Nguồn
V2	7.4		AV:A/AC:M/Au:S/C:C/I:C/A:C	nvd@nist.gov

EPSS

EPSS là mô hình tính điểm dự đoán khả năng một lỗ hổng bị khai thác.

Điểm EPSS

Mô hình EPSS tạo ra điểm xác suất từ 0 đến 1 (0 đến 100%). Điểm càng cao, xác suất một lỗ hổng bị khai thác càng lớn.

Phân vị EPSS

Phân vị được dùng để xếp hạng CVE theo điểm EPSS. Ví dụ, một CVE ở phân vị thứ 95 theo điểm EPSS có nhiều khả năng bị khai thác hơn 95% CVE khác. Do đó, phân vị được dùng để so sánh điểm EPSS của một CVE với các CVE khác.

EPSS First.org

Sản phẩm được đề cập

Cấu hình 0

Qemu>>Qemu >> Version 0.1.0

Qemu>>Qemu >> Version 0.1.1

Qemu>>Qemu >> Version 0.1.2

Qemu>>Qemu >> Version 0.1.3

Qemu>>Qemu >> Version 0.1.4

Qemu>>Qemu >> Version 0.1.5

Qemu>>Qemu >> Version 0.1.6

Qemu>>Qemu >> Version 0.2.0

Qemu>>Qemu >> Version 0.3.0

Qemu>>Qemu >> Version 0.4.0

Qemu>>Qemu >> Version 0.4.1

Qemu>>Qemu >> Version 0.4.2

Qemu>>Qemu >> Version 0.4.3

Qemu>>Qemu >> Version 0.5.0

Qemu>>Qemu >> Version 0.5.1

Qemu>>Qemu >> Version 0.5.2

Qemu>>Qemu >> Version 0.5.3

Qemu>>Qemu >> Version 0.5.4

Qemu>>Qemu >> Version 0.5.5

Qemu>>Qemu >> Version 0.6.0

Qemu>>Qemu >> Version 0.6.1

Qemu>>Qemu >> Version 0.7.0

Qemu>>Qemu >> Version 0.7.1

Qemu>>Qemu >> Version 0.7.2

Qemu>>Qemu >> Version 0.8.0

Qemu>>Qemu >> Version 0.8.1

Qemu>>Qemu >> Version 0.8.2

Qemu>>Qemu >> Version 0.9.0

Qemu>>Qemu >> Version 0.9.1

Qemu>>Qemu >> Version 0.9.1-5

Qemu>>Qemu >> Version 0.10.0

Qemu>>Qemu >> Version 0.10.1

Qemu>>Qemu >> Version 0.10.2

Qemu>>Qemu >> Version 0.10.3

Qemu>>Qemu >> Version 0.10.4

Qemu>>Qemu >> Version 0.10.5

Qemu>>Qemu >> Version 0.10.6

Qemu>>Qemu >> Version 0.11.0

Qemu>>Qemu >> Version 0.11.0-rc0

Qemu>>Qemu >> Version 0.11.0-rc1

Qemu>>Qemu >> Version 0.11.0-rc2

Qemu>>Qemu >> Version 0.11.1

Qemu>>Qemu >> Version 0.12.0

Qemu>>Qemu >> Version 0.12.1

Qemu>>Qemu >> Version 0.12.2

Qemu>>Qemu >> Version 0.12.3

Qemu>>Qemu >> Version 0.12.4

Qemu>>Qemu >> Version 0.12.5

Qemu>>Qemu >> Version 0.13.0

Qemu>>Qemu >> Version 0.14.0

Qemu>>Qemu >> Version 0.14.1

Qemu>>Qemu >> Version 0.15.0

Qemu>>Qemu >> Version 1.0

Qemu>>Qemu >> Version 1.0.1

Qemu>>Qemu >> Version 1.1

Tài liệu tham khảo

http://www.openwall.com/lists/oss-security/2011/05/19/2
Tags : mailing-list, x_refsource_MLIST

http://rhn.redhat.com/errata/RHSA-2011-0534.html
Tags : vendor-advisory, x_refsource_REDHAT

http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca
Tags : x_refsource_CONFIRM

http://secunia.com/advisories/44648
Tags : third-party-advisory, x_refsource_SECUNIA

http://www.osvdb.org/73395
Tags : vdb-entry, x_refsource_OSVDB

http://secunia.com/advisories/44393
Tags : third-party-advisory, x_refsource_SECUNIA

http://secunia.com/advisories/44658
Tags : third-party-advisory, x_refsource_SECUNIA

https://hermes.opensuse.org/messages/8572547
Tags : vendor-advisory, x_refsource_SUSE

http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html
Tags : mailing-list, x_refsource_MLIST

http://www.securityfocus.com/bid/47927
Tags : vdb-entry, x_refsource_BID

https://github.com/nelhage/virtunoid
Tags : x_refsource_MISC

https://bugzilla.redhat.com/show_bug.cgi?id=699773
Tags : x_refsource_MISC

http://secunia.com/advisories/44458
Tags : third-party-advisory, x_refsource_SECUNIA

http://secunia.com/advisories/44660
Tags : third-party-advisory, x_refsource_SECUNIA

http://blog.nelhage.com/2011/08/breaking-out-of-kvm/
Tags : x_refsource_MISC

https://www.ubuntu.com/usn/USN-1145-1/
Tags : vendor-advisory, x_refsource_UBUNTU

http://secunia.com/advisories/44900
Tags : third-party-advisory, x_refsource_SECUNIA

http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html
Tags : vendor-advisory, x_refsource_SUSE

Ngày	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	2.17%	–	–
2022-02-20	–	–	2.17%	–	–
2022-04-03	–	–	2.17%	–	–
2022-05-01	–	–	2.17%	–	–
2022-09-25	–	–	2.17%	–	–
2023-03-12	–	–	–	0.11%	–
2023-04-02	–	–	–	0.11%	–
2023-10-08	–	–	–	0.11%	–
2024-02-11	–	–	–	0.11%	–
2024-06-02	–	–	–	0.11%	–
2024-06-02	–	–	–	0.11%	–
2024-07-14	–	–	–	0.11%	–
2024-08-04	–	–	–	0.11%	–
2024-08-11	–	–	–	0.11%	–
2024-11-24	–	–	–	0.11%	–
2024-12-22	–	–	–	0.07%	–
2025-01-12	–	–	–	0.07%	–
2025-01-19	–	–	–	0.07%	–
2025-03-16	–	–	–	0.07%	–
2025-03-18	–	–	–	–	0.37%
2025-03-30	–	–	–	–	0.37%
2025-04-15	–	–	–	–	0.37%
2025-11-18	–	–	–	–	0.37%
2025-11-21	–	–	–	–	0.37%
2026-03-01	–	–	–	–	0.37%
2026-03-08	–	–	–	–	0.37%
2026-03-15	–	–	–	–	0.37%

Ngày	Phân vị
2022-02-06	57%
2022-02-20	58%
2022-04-03	78%
2022-05-01	79%
2022-09-25	8%
2023-03-12	41%
2023-04-02	42%
2023-10-08	43%
2024-02-11	42%
2024-06-02	43%
2024-06-02	43%
2024-07-14	44%
2024-08-04	43%
2024-08-11	44%
2024-11-24	45%
2024-12-22	34%
2025-01-12	35%
2025-01-19	35%
2025-03-16	36%
2025-03-18	57%
2025-03-30	56%
2025-04-15	58%
2025-11-18	56%
2025-11-21	58%
2026-03-01	59%
2026-03-08	58%
2026-03-15	59%

CVE-2011-1751 : Chi tiết

CVE-2011-1751