摘要:
qemu security update
安全等级: High
公告ID: KylinSec-SA-2024-1507
发布日期: 2024年4月26日
QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed.
Security Fix(es):
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.(CVE-2023-0330)
A double free vulnerability was found in QEMU virtio devices (virtio-gpu, virtio-serial-bus, virtio-crypto), where the mem_reentrancy_guard flag insufficiently protects against DMA reentrancy issues. This issue could allow a malicious privileged guest user to crash the QEMU process on the host, resulting in a denial of service or allow arbitrary code execution within the context of the QEMU process on the host.(CVE-2024-3446)
A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.(CVE-2024-3447)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2023-0330 | KY3.5.2 | qemu | Fixed |
| CVE-2024-3446 | KY3.5.2 | qemu | Fixed |
| CVE-2024-3447 | KY3.5.2 | qemu | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| qemu-help | noarch | 6.2.0-91.ky3_5.kb1 |
| qemu-block-rbd | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-img | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-riscv | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-curl | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-x86_64 | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-arm | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-ssh | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-seabios | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-hw-usb-host | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-guest-agent | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-aarch64 | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-iscsi | x86_64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-x86_64 | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-guest-agent | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-arm | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-riscv | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-iscsi | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-ssh | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-system-aarch64 | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-img | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-hw-usb-host | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-rbd | aarch64 | 6.2.0-91.ky3_5.kb1 |
| qemu-block-curl | aarch64 | 6.2.0-91.ky3_5.kb1 |
方法一：下载安装包进行升级安装
1、通过下载链接下载需要升级的升级包保存，如 xxx.rpm
2、通过rpm命令升级，如 rpm -Uvh xxx.rpm
方法二：通过软件源进行升级安装
1、保持能够连接上互联网
2、通过yum命令升级指定的包，如 yum install 包名
