Oracle Linux 8：virt: ol / 和 / virt-devel: ol (ELSA-2022-7472)
medium Nessus 插件 ID 167524
语言：
简介
远程 Oracle Linux 主机缺少一个或多个安全更新。描述
远程 Oracle Linux 8 主机上安装的多个程序包受到 ELSA-2022-7472 公告中提及的多个漏洞影响。- swtpm 是基于 libtpms 的 TPM 仿真器，包含套接字、字符设备和 Linux CUSE 接口。 0.5.3、 0.6.2 和 0.7.1 之前的版本易受到越界读取的影响。访问表示 TPM 状态的字节数组时，特别构建的 swtpm 状态标头（其中 blobheader 的 hdrsize 指示符具有无效值）可能导致越界访问。由于无法识别状态，这可能会使 swtpm 崩溃或阻止其启动。用户应将版本升级到 swtpm v0.5.3、v0.6.2 或 v0.7.1 以接收补丁。目前尚无已知的变通方案。(CVE-2022-23645)
- 在 QEMU 及 6.0.0（含）之前版本的软盘仿真器中发现堆缓冲区溢出。处理从软盘驱动器到客户机系统的 DMA 读取数据传输时，它可能发生在 hw/block/fdc.c 的 fdctrl_transfer_handler() 中。有特权的客户机用户可能利用此缺陷造成主机上的 QEMU 进程崩溃，进而导致 DoS 情形，或可能从主机内存中导致信息泄露。(CVE-2021-3507)
- 在 libguestfs 中发现一个漏洞。在 get_keys() 函数中计算匹配密钥的最大可能数时会发生此问题。此缺陷会导致拒绝服务，无论是错误的还是恶意的。(CVE-2022-2211)
- 在 libvirt nwfilter 驱动程序中发现一个缺陷。在迭代 virNWFilterObj 实例之前，virNWFilterObjListNumOfNWFilters 方法无法获取 driver->nwfilters 互斥体。没有保护机制可以阻止其他线程并行修改 driver->nwfilters 对象。此缺陷允许恶意的无特权用户通过 libvirt 的 API virConnectNumOfNWFilters 利用此问题，从而使网络过滤器管理后台程序 (libvirtd/virtnwfilterd) 崩溃。(CVE-2022-0897)
请注意，Nessus 尚未测试这些问题，而是只依靠应用程序自我报告的版本号来判断。
解决方案
更新受影响的程序包。另见
插件详情
严重性: Medium
ID: 167524
文件名: oraclelinux_ELSA-2022-7472.nasl
版本: 1.3
类型: local
代理: unix
发布时间: 2022/11/15
最近更新时间: 2023/10/3
支持的传感器: Frictionless Assessment Agent, Nessus Agent, Nessus
风险信息
VPR
风险因素: Medium
分数: 5.0
CVSS v2
风险因素: Low
基本分数: 3.6
时间分数: 2.8
矢量: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:P
CVSS 分数来源: CVE-2021-3507
CVSS v3
风险因素: Medium
基本分数: 6.1
时间分数: 5.5
矢量: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
时间矢量: CVSS:3.0/E:P/RL:O/RC:C
漏洞信息
CPE: p-cpe:/a:oracle:linux:libvirt-daemon, p-cpe:/a:oracle:linux:libvirt-daemon-config-network, p-cpe:/a:oracle:linux:libvirt-daemon-config-nwfilter, p-cpe:/a:oracle:linux:libvirt-daemon-driver-interface, p-cpe:/a:oracle:linux:libvirt-daemon-driver-network, p-cpe:/a:oracle:linux:libvirt-daemon-driver-nodedev, p-cpe:/a:oracle:linux:libvirt-daemon-driver-nwfilter, p-cpe:/a:oracle:linux:libvirt-daemon-driver-qemu, p-cpe:/a:oracle:linux:libvirt-daemon-driver-secret, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-core, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-disk, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-gluster, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-iscsi-direct, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-logical, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-mpath, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-rbd, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-scsi, p-cpe:/a:oracle:linux:libvirt-daemon-kvm, p-cpe:/a:oracle:linux:libvirt-dbus, p-cpe:/a:oracle:linux:libvirt-devel, p-cpe:/a:oracle:linux:libvirt-docs, p-cpe:/a:oracle:linux:libvirt-libs, p-cpe:/a:oracle:linux:libvirt-lock-sanlock, p-cpe:/a:oracle:linux:libvirt-nss, p-cpe:/a:oracle:linux:libvirt-wireshark, p-cpe:/a:oracle:linux:lua-guestfs, p-cpe:/a:oracle:linux:nbdfuse, p-cpe:/a:oracle:linux:nbdkit, p-cpe:/a:oracle:linux:nbdkit-bash-completion, p-cpe:/a:oracle:linux:nbdkit-basic-filters, p-cpe:/a:oracle:linux:nbdkit-basic-plugins, p-cpe:/a:oracle:linux:nbdkit-curl-plugin, p-cpe:/a:oracle:linux:nbdkit-devel, p-cpe:/a:oracle:linux:nbdkit-example-plugins, p-cpe:/a:oracle:linux:nbdkit-gzip-filter, p-cpe:/a:oracle:linux:nbdkit-gzip-plugin, p-cpe:/a:oracle:linux:nbdkit-linuxdisk-plugin, p-cpe:/a:oracle:linux:nbdkit-nbd-plugin, p-cpe:/a:oracle:linux:nbdkit-python-plugin, p-cpe:/a:oracle:linux:nbdkit-server, p-cpe:/a:oracle:linux:nbdkit-ssh-plugin, p-cpe:/a:oracle:linux:nbdkit-tar-filter, p-cpe:/a:oracle:linux:nbdkit-tar-plugin, p-cpe:/a:oracle:linux:nbdkit-tmpdisk-plugin, p-cpe:/a:oracle:linux:nbdkit-vddk-plugin, p-cpe:/a:oracle:linux:nbdkit-xz-filter, p-cpe:/a:oracle:linux:netcf, p-cpe:/a:oracle:linux:netcf-devel, p-cpe:/a:oracle:linux:netcf-libs, p-cpe:/a:oracle:linux:ocaml-hivex, p-cpe:/a:oracle:linux:ocaml-hivex-devel, p-cpe:/a:oracle:linux:ocaml-libguestfs, p-cpe:/a:oracle:linux:ocaml-libguestfs-devel, p-cpe:/a:oracle:linux:ocaml-libnbd, p-cpe:/a:oracle:linux:ocaml-libnbd-devel, p-cpe:/a:oracle:linux:perl-sys-guestfs, p-cpe:/a:oracle:linux:perl-sys-virt, p-cpe:/a:oracle:linux:perl-hivex, p-cpe:/a:oracle:linux:python3-hivex, p-cpe:/a:oracle:linux:python3-libguestfs, p-cpe:/a:oracle:linux:python3-libnbd, p-cpe:/a:oracle:linux:python3-libvirt, p-cpe:/a:oracle:linux:qemu-guest-agent, p-cpe:/a:oracle:linux:qemu-img, p-cpe:/a:oracle:linux:qemu-kvm, p-cpe:/a:oracle:linux:qemu-kvm-block-curl, p-cpe:/a:oracle:linux:qemu-kvm-block-gluster, p-cpe:/a:oracle:linux:qemu-kvm-block-iscsi, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:hivex, p-cpe:/a:oracle:linux:hivex-devel, p-cpe:/a:oracle:linux:libguestfs, p-cpe:/a:oracle:linux:libguestfs-appliance, p-cpe:/a:oracle:linux:libguestfs-bash-completion, p-cpe:/a:oracle:linux:libguestfs-devel, p-cpe:/a:oracle:linux:libguestfs-gfs2, p-cpe:/a:oracle:linux:libguestfs-gobject, p-cpe:/a:oracle:linux:libguestfs-gobject-devel, p-cpe:/a:oracle:linux:libguestfs-inspect-icons, p-cpe:/a:oracle:linux:libguestfs-java, p-cpe:/a:oracle:linux:libguestfs-java-devel, p-cpe:/a:oracle:linux:libguestfs-javadoc, p-cpe:/a:oracle:linux:libguestfs-man-pages-ja, p-cpe:/a:oracle:linux:libguestfs-man-pages-uk, p-cpe:/a:oracle:linux:libguestfs-rescue, p-cpe:/a:oracle:linux:libguestfs-rsync, p-cpe:/a:oracle:linux:libguestfs-tools, p-cpe:/a:oracle:linux:libguestfs-tools-c, p-cpe:/a:oracle:linux:libguestfs-winsupport, p-cpe:/a:oracle:linux:libguestfs-xfs, p-cpe:/a:oracle:linux:libiscsi, p-cpe:/a:oracle:linux:libiscsi-devel, p-cpe:/a:oracle:linux:libiscsi-utils, p-cpe:/a:oracle:linux:libnbd, p-cpe:/a:oracle:linux:libnbd-bash-completion, p-cpe:/a:oracle:linux:libnbd-devel, p-cpe:/a:oracle:linux:libtpms, p-cpe:/a:oracle:linux:libtpms-devel, p-cpe:/a:oracle:linux:libvirt, p-cpe:/a:oracle:linux:libvirt-client, p-cpe:/a:oracle:linux:libvirt-daemon-driver-storage-iscsi, p-cpe:/a:oracle:linux:qemu-kvm-block-rbd, p-cpe:/a:oracle:linux:qemu-kvm-block-ssh, p-cpe:/a:oracle:linux:qemu-kvm-common, p-cpe:/a:oracle:linux:qemu-kvm-core, p-cpe:/a:oracle:linux:qemu-kvm-docs, p-cpe:/a:oracle:linux:qemu-kvm-hw-usbredir, p-cpe:/a:oracle:linux:qemu-kvm-tests, p-cpe:/a:oracle:linux:qemu-kvm-ui-opengl, p-cpe:/a:oracle:linux:qemu-kvm-ui-spice, p-cpe:/a:oracle:linux:ruby-hivex, p-cpe:/a:oracle:linux:ruby-libguestfs, p-cpe:/a:oracle:linux:seabios, p-cpe:/a:oracle:linux:seabios-bin, p-cpe:/a:oracle:linux:seavgabios-bin, p-cpe:/a:oracle:linux:sgabios, p-cpe:/a:oracle:linux:sgabios-bin, p-cpe:/a:oracle:linux:supermin, p-cpe:/a:oracle:linux:supermin-devel, p-cpe:/a:oracle:linux:swtpm, p-cpe:/a:oracle:linux:swtpm-devel, p-cpe:/a:oracle:linux:swtpm-libs, p-cpe:/a:oracle:linux:swtpm-tools, p-cpe:/a:oracle:linux:swtpm-tools-pkcs11, p-cpe:/a:oracle:linux:virt-dib, p-cpe:/a:oracle:linux:virt-v2v, p-cpe:/a:oracle:linux:virt-v2v-bash-completion, p-cpe:/a:oracle:linux:virt-v2v-man-pages-ja, p-cpe:/a:oracle:linux:virt-v2v-man-pages-uk
必需的 KB 项: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled
可利用: true
易利用性: Exploits are available
补丁发布日期: 2022/11/15
漏洞发布日期: 2021/5/6
参考资料信息
CVE: CVE-2021-3507, CVE-2022-0897, CVE-2022-2211, CVE-2022-23645