Oracle Linux 8：virt：ol / 和 / virt-devel: ol (ELSA-2021-4191)
medium Nessus Plugin ID 155984
語系：
概要
遠端 Oracle Linux 主機缺少一個或多個安全性更新。說明
遠端 Oracle Linux 8 主機中安裝的套件受到 ELSA-2021-4191 公告中提及的多個弱點影響。- 在 QEMU 的 SLiRP 網路實作中發現一個無效的指標初始化問題。此缺陷存在於 udp_input() 函式中，且可能會在處理小於「udphdr」結構大小的 udp 封包時發生。此問題可能導致超出邊界讀取存取或對來賓的間接主機記憶體洩漏。此缺陷對資料機密性的威脅最大。此缺陷會影響 libslirp 4.6.0 之前版本。(CVE-2021-3594)
- libvirt：在 virStoragePoolLookupByTargetPath API 中不當鎖定 ACL 時失敗 (CVE-2021-3667)
- QEMU 4.2.0 的 hw/net/e1000e_core.c 中存在釋放後使用問題，這是因為來賓 OS 使用者可在資料位址設為 e1000e 的 MMIO 位址的情況下觸發 e1000e 封包。(CVE-2020-15859)
- 在 QEMU 的 SLiRP 網路實作中發現一個無效的指標初始化問題。此缺陷存在於 bootp_input() 函式中，且可能會在處理小於「bootp_t」結構大小的 udp 封包時發生。惡意來賓可利用此瑕疵從主機洩漏 10 位元組的未初始化堆積記憶體。此缺陷對資料機密性的威脅最大。此缺陷會影響 libslirp 4.6.0 之前版本。(CVE-2021-3592)
- 在 QEMU 的 SLiRP 網路實作中發現一個無效的指標初始化問題。此缺陷存在於 udp6_input() 函式中，且可能會在處理小於「udphdr」結構大小的 udp 封包時發生。此問題可能導致超出邊界讀取存取或對來賓的間接主機記憶體洩漏。此缺陷對資料機密性的威脅最大。此缺陷會影響 libslirp 4.6.0 之前版本。(CVE-2021-3593)
- 在 QEMU 的 SLiRP 網路實作中發現一個無效的指標初始化問題。此缺陷存在於 tftp_input() 函式中，且可能會在處理小於「tftp_t」結構大小的 udp 封包時發生。此問題可能導致超出邊界讀取存取或對來賓的間接主機記憶體洩漏。此缺陷對資料機密性的威脅最大。此缺陷會影響 libslirp 4.6.0 之前版本。(CVE-2021-3595)
- libvirt：產生不安全的 sVirt 標籤 (CVE-2021-3631)
請注意，Nessus 並未測試此問題，而是僅依據應用程式自我報告的版本號碼。
解決方案
更新受影響的套件。另請參閱
Plugin 詳細資訊
嚴重性: Medium
ID: 155984
檔案名稱: oraclelinux_ELSA-2021-4191.nasl
版本: 1.4
類型: local
代理程式: unix
已發布: 2021/12/10
已更新: 2023/11/22
支援的感應器: Frictionless Assessment Agent, Nessus Agent, Nessus
風險資訊
VPR
風險因素: Medium
分數: 6.0
CVSS v2
風險因素: Low
基本分數: 3.3
時間分數: 2.6
媒介: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:N
CVSS 評分資料來源: CVE-2021-3631
CVSS v3
風險因素: Medium
基本分數: 6.3
時間分數: 5.7
媒介: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
時間媒介: CVSS:3.0/E:P/RL:O/RC:C
弱點資訊
CPE: 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-bash-completion, p-cpe:/a:oracle:linux:libguestfs-benchmarking, 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-devel, p-cpe:/a:oracle:linux:libvirt, p-cpe:/a:oracle:linux:libvirt-admin, p-cpe:/a:oracle:linux:libvirt-bash-completion, p-cpe:/a:oracle:linux:libvirt-client, p-cpe:/a:oracle:linux:libvirt-daemon, 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:virt-dib, p-cpe:/a:oracle:linux:virt-v2v, 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, 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: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-plugin, p-cpe:/a:oracle:linux:nbdkit-linuxdisk-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-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, 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-tests, p-cpe:/a:oracle:linux:ruby-hivex, p-cpe:/a:oracle:linux:ruby-libguestfs
必要的 KB 項目: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux
可被惡意程式利用: true
可輕鬆利用: Exploits are available
修補程式發佈日期: 2021/11/16
弱點發布日期: 2020/7/21
參考資訊
CVE: CVE-2020-15859, CVE-2021-3592, CVE-2021-3593, CVE-2021-3594, CVE-2021-3595, CVE-2021-3631, CVE-2021-3667
IAVB: 2020-B-0041-S