Описание
Security update for qemu
This update for qemu fixes the following issues:
- CVE-2021-3750: Fixed DMA reentrancy issue that could lead to use-after-free (bsc#1190011)
- CVE-2022-0216: Fixed use-after-free in lsi_do_msgout function in hw/scsi/lsi53c895a.c (bsc#1198038)
- CVE-2023-0330: Fixed DMA reentrancy issue that could lead to stack overflow (bsc#1207205)
- CVE-2023-3180: Fixed heap buffer overflow in virtio_crypto_sym_op_helper() (bsc#1213925)
- CVE-2023-3354: Fixed improper I/O watch removal in VNC TLS handshake that could lead to remote unauthenticated denial of service (bsc#1212850)
Список пакетов
Image SLES12-SP5-EC2-ECS-On-Demand
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
Ссылки
- Link for SUSE-SU-2024:1395-1
- E-Mail link for SUSE-SU-2024:1395-1
- SUSE Security Ratings
- SUSE Bug 1190011
- SUSE Bug 1198038
- SUSE Bug 1207205
- SUSE Bug 1212850
- SUSE Bug 1213925
- SUSE CVE CVE-2021-3750 page
- SUSE CVE CVE-2022-0216 page
- SUSE CVE CVE-2023-0330 page
- SUSE CVE CVE-2023-3180 page
- SUSE CVE CVE-2023-3354 page
Описание
A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions (such as reset) while the device is still transferring packets. This can ultimately lead to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code within the context of the QEMU process on the host. This flaw affects QEMU versions before 7.0.0.
Затронутые продукты
Ссылки
- CVE-2021-3750
- SUSE Bug 1190011
- SUSE Bug 1190015
- SUSE Bug 1193880
Описание
A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.
Затронутые продукты
Ссылки
- CVE-2022-0216
- SUSE Bug 1198038
Описание
A vulnerability in the lsi53c895a device affects the latest version of qemu. A DMA-MMIO reentrancy problem may lead to memory corruption bugs like stack overflow or use-after-free.
Затронутые продукты
Ссылки
- CVE-2023-0330
- SUSE Bug 1207205
Описание
A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.
Затронутые продукты
Ссылки
- CVE-2023-3180
- SUSE Bug 1213925
Описание
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
Затронутые продукты
Ссылки
- CVE-2023-3354
- SUSE Bug 1212850