摘要:
kernel security update
安全等级: Medium
公告ID: KylinSec-SA-2023-2254
发布日期: 2023年6月27日
关联CVE: CVE-2023-31084 CVE-2023-2985
The Linux Kernel, the operating system core itself.
Security Fix(es):
An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.(CVE-2023-31084)
A use after free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw could allow a local user to cause a denial of service problem.(CVE-2023-2985)
| cve名称 | 产品 | 组件 | 是否受影响 |
|---|---|---|---|
| CVE-2023-31084 | KY3.4-5A | kernel | Fixed |
| CVE-2023-2985 | KY3.4-5A | kernel | Fixed |
| 软件名称 | 架构 | 版本号 |
|---|---|---|
| kernel-source | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-tools | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| perf | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-tools-devel | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| python3-perf | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| python2-perf | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| bpftool | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-devel | x86_64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| bpftool | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-devel | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| perf | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| python3-perf | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-tools | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-tools-devel | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| kernel-source | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
| python2-perf | aarch64 | 4.19.90-2309.3.0.0218.kb1.ky3_4 |
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
