Rocky Linux 8samba (RLSA-2021:4058)
medium Nessus 插件 ID 157837
语言：
简介
远程 Rocky Linux 主机缺少安全更新。描述
远程 Rocky Linux 8 主机上存在安装的程序包该程序包受到公告 RLSA-2021:4058 中提及的漏洞的影响。- 在 samba 中发现一个缺陷。Samba smbd 文件服务器必须将 Windows 群组标识 (SID) 映射到 unix 群组 ID (gids)。执行此任务的代码有一个缺陷，在将负缓存条目添加到映射缓存时，该缺陷允许应用程序读取超出数组末尾的数据。这可造成调用代码将这些值返回至为用户存储组成员身份的进程标记中。此漏洞最主要的威胁对象是数据机密性和完整性。
(CVE-2021-20254)
请注意，Nessus 尚未测试此问题，而是只依据应用程序自我报告的版本号进行判断。
解决方案
更新受影响的程序包。另见
插件详情
严重性: Medium
ID: 157837
文件名: rocky_linux_RLSA-2021-4058.nasl
版本: 1.4
类型: local
发布时间: 2022/2/9
最近更新时间: 2023/11/7
支持的传感器: Continuous Assessment, Nessus
风险信息
VPR
风险因素: Medium
分数: 5.2
CVSS v2
风险因素: Medium
基本分数: 4.9
时间分数: 3.6
矢量: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:N
CVSS 分数来源: CVE-2021-20254
CVSS v3
风险因素: Medium
基本分数: 6.8
时间分数: 5.9
矢量: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
时间矢量: CVSS:3.0/E:U/RL:O/RC:C
漏洞信息
CPE: p-cpe:/a:rocky:linux:samba-winbind-debuginfo, p-cpe:/a:rocky:linux:samba-client-libs-debuginfo, p-cpe:/a:rocky:linux:samba-test-debuginfo, p-cpe:/a:rocky:linux:samba-common-tools-debuginfo, p-cpe:/a:rocky:linux:ctdb, p-cpe:/a:rocky:linux:samba-devel, p-cpe:/a:rocky:linux:libsmbclient-devel, p-cpe:/a:rocky:linux:samba-test-libs-debuginfo, p-cpe:/a:rocky:linux:samba-client-libs, p-cpe:/a:rocky:linux:samba-winbind-modules-debuginfo, p-cpe:/a:rocky:linux:samba, p-cpe:/a:rocky:linux:samba-winbind-clients-debuginfo, p-cpe:/a:rocky:linux:libsmbclient-debuginfo, p-cpe:/a:rocky:linux:libsmbclient, p-cpe:/a:rocky:linux:libwbclient-debuginfo, p-cpe:/a:rocky:linux:samba-common-libs, p-cpe:/a:rocky:linux:samba-test-libs, p-cpe:/a:rocky:linux:samba-winexe, p-cpe:/a:rocky:linux:python3-samba-test, p-cpe:/a:rocky:linux:samba-debuginfo, p-cpe:/a:rocky:linux:samba-winbind-modules, p-cpe:/a:rocky:linux:samba-debugsource, p-cpe:/a:rocky:linux:samba-common-libs-debuginfo, p-cpe:/a:rocky:linux:samba-client-debuginfo, p-cpe:/a:rocky:linux:libwbclient, p-cpe:/a:rocky:linux:samba-winbind-clients, cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:samba-common, p-cpe:/a:rocky:linux:samba-client, p-cpe:/a:rocky:linux:ctdb-debuginfo, p-cpe:/a:rocky:linux:samba-winexe-debuginfo, p-cpe:/a:rocky:linux:samba-winbind-krb5-locator-debuginfo, p-cpe:/a:rocky:linux:python3-samba-debuginfo, p-cpe:/a:rocky:linux:samba-libs, p-cpe:/a:rocky:linux:samba-krb5-printing, p-cpe:/a:rocky:linux:samba-krb5-printing-debuginfo, p-cpe:/a:rocky:linux:samba-test, p-cpe:/a:rocky:linux:samba-winbind, p-cpe:/a:rocky:linux:samba-common-tools, p-cpe:/a:rocky:linux:samba-pidl, p-cpe:/a:rocky:linux:ctdb-tests-debuginfo, p-cpe:/a:rocky:linux:ctdb-tests, p-cpe:/a:rocky:linux:libwbclient-devel, p-cpe:/a:rocky:linux:samba-libs-debuginfo, p-cpe:/a:rocky:linux:python3-samba, p-cpe:/a:rocky:linux:samba-winbind-krb5-locator
必需的 KB 项: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list
易利用性: No known exploits are available
补丁发布日期: 2021/11/4
漏洞发布日期: 2021/4/29
参考资料信息
CVE: CVE-2021-20254
IAVA: 2021-A-0208-S