Detections
Analytics
Oracle Linux 8 : buildah (ELSA-2023-12578)
high Nessus Plugin ID 178580
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Synopsis
The remote Oracle Linux host is missing one or more security updates.Description
The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12578 advisory.- runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image. (CVE-2023-28642)
- runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users's cgroup hierarchies are not affected.
Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`. (CVE-2023-25809)
- runc through 1.1.4 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. NOTE: this issue exists because of a CVE-2019-19921 regression. (CVE-2023-27561)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 178580
File Name: oraclelinux_ELSA-2023-12578.nasl
Version: 1.0
Type: local
Agent: unix
Published: 7/20/2023
Updated: 7/20/2023
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.3
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2023-28642
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:oracle:linux:containernetworking-plugins, p-cpe:/a:oracle:linux:aardvark-dns, cpe:/a:oracle:linux:8::appstream_developer, p-cpe:/a:oracle:linux:podman-docker, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:podman-plugins, p-cpe:/a:oracle:linux:runc, p-cpe:/a:oracle:linux:oci-seccomp-bpf-hook, p-cpe:/a:oracle:linux:crun, cpe:/a:oracle:linux:8::appstream, p-cpe:/a:oracle:linux:libslirp, p-cpe:/a:oracle:linux:criu, p-cpe:/a:oracle:linux:libslirp-devel, p-cpe:/a:oracle:linux:podman-catatonit, p-cpe:/a:oracle:linux:podman-gvproxy, p-cpe:/a:oracle:linux:container-selinux, p-cpe:/a:oracle:linux:netavark, p-cpe:/a:oracle:linux:buildah, p-cpe:/a:oracle:linux:python3-criu, p-cpe:/a:oracle:linux:skopeo-tests, p-cpe:/a:oracle:linux:conmon, p-cpe:/a:oracle:linux:crit, p-cpe:/a:oracle:linux:containers-common, p-cpe:/a:oracle:linux:cockpit-podman, p-cpe:/a:oracle:linux:slirp4netns, p-cpe:/a:oracle:linux:podman, p-cpe:/a:oracle:linux:criu-libs, p-cpe:/a:oracle:linux:python3-podman, cpe:/a:oracle:linux:8:8:appstream_base, p-cpe:/a:oracle:linux:fuse-overlayfs, p-cpe:/a:oracle:linux:buildah-tests, p-cpe:/a:oracle:linux:podman-tests, p-cpe:/a:oracle:linux:podman-remote, p-cpe:/a:oracle:linux:udica, p-cpe:/a:oracle:linux:skopeo, p-cpe:/a:oracle:linux:criu-devel
Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/19/2023
Vulnerability Publication Date: 3/3/2023