RHEL 8：内核 (RHSA-2021: 1093)
high Nessus 插件 ID 148370
语言：
简介
远程 Red Hat 主机缺少一个或多个安全更新。描述
远程 Redhat Enterprise Linux 8 主机上安装的程序包受到 RHSA-2021: 1093 公告中提及的漏洞的影响。- 内核：eventpoll.c 中的释放后使用可能导致权限升级 (CVE-2020-0466)
- 内核：KVM：延迟更新 IOAPIC 导致主机堆栈溢出 (CVE-2020-27152)
- 内核：SCSI 目标 (LIO) 可写入任何 ILO 回存块 (CVE-2020-28374)
- 内核：net/vmw_vsock/af_vsock.c 中的错误锁定造成了争用条件 (CVE-2021-26708)
- 内核：iscsi：不受限制地访问会话和处理 (CVE-2021-27363)
- 内核：libiscsi 模块中的越界读取 (CVE-2021-27364)
- 内核：iSCSI 子系统中的堆缓冲区溢出 (CVE-2021-27365)
- 内核：通过 PI futex 状态造成的释放后使用 (CVE-2021-3347)
请注意，Nessus 尚未测试此问题，而是只依赖于应用程序自我报告的版本号。
解决方案
更新受影响的程序包。另见
https://cwe.mitre.org/data/definitions/20.html
https://cwe.mitre.org/data/definitions/122.html
https://cwe.mitre.org/data/definitions/125.html
https://cwe.mitre.org/data/definitions/200.html
https://cwe.mitre.org/data/definitions/250.html
https://cwe.mitre.org/data/definitions/362.html
https://cwe.mitre.org/data/definitions/416.html
https://cwe.mitre.org/data/definitions/835.html
https://access.redhat.com/security/cve/CVE-2020-0466
https://access.redhat.com/security/cve/CVE-2020-27152
https://access.redhat.com/security/cve/CVE-2020-28374
https://access.redhat.com/security/cve/CVE-2021-3347
https://access.redhat.com/security/cve/CVE-2021-26708
https://access.redhat.com/security/cve/CVE-2021-27363
https://access.redhat.com/security/cve/CVE-2021-27364
https://access.redhat.com/security/cve/CVE-2021-27365
https://access.redhat.com/errata/RHSA-2021:1093
https://bugzilla.redhat.com/1888886
https://bugzilla.redhat.com/1899804
https://bugzilla.redhat.com/1920480
https://bugzilla.redhat.com/1922249
https://bugzilla.redhat.com/1925588
https://bugzilla.redhat.com/1930078
插件详情
严重性: High
ID: 148370
文件名: redhat-RHSA-2021-1093.nasl
版本: 1.5
类型: local
代理: unix
发布时间: 2021/4/7
最近更新时间: 2022/5/10
支持的传感器: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent
风险信息
CVSS 分数来源: CVE-2021-3347
VPR
风险因素: Critical
分数: 9.7
CVSS v2
风险因素: High
基本分数: 7.2
时间分数: 5.3
矢量: AV:L/AC:L/Au:N/C:C/I:C/A:C
时间矢量: E:U/RL:OF/RC:C
CVSS v3
风险因素: High
基本分数: 8.1
时间分数: 7.1
矢量: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
时间矢量: E:U/RL:O/RC:C
漏洞信息
CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_aus:8.4, cpe:/o:redhat:rhel_e4s:8.4, cpe:/o:redhat:rhel_eus:8.4, cpe:/o:redhat:rhel_tus:8.4, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python3-perf
必需的 KB 项: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
易利用性: No known exploits are available
补丁发布日期: 2021/4/6
漏洞发布日期: 2020/11/6
参考资料信息
CVE: CVE-2020-0466, CVE-2020-27152, CVE-2020-28374, CVE-2021-3347, CVE-2021-26708, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365