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TencentOS Server 3: container-tools:rhel8 (TSSA-2024:1105)

medium Nessus Plugin ID 239109

Synopsis

The remote TencentOS Server 3 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:1105 advisory.

 Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

 CVE-2021-4024:
 A flaw was found in podman. The podman machine function (used to create and manage Podman virtual machine containing a Podman process) spawns a gvproxy process on the host system. The gvproxy API is accessible on port 7777 on all IP addresses on the host. If that port is open on the host's firewall, an attacker can potentially use the gvproxy API to forward ports on the host to ports in the VM, making private services on the VM accessible to the network. This issue could be also used to interrupt the host's services by forwarding all ports to the VM.

 CVE-2021-33198:
 In Go before 1.15.13 and 1.16.x before 1.16.5, there can be a panic for a large exponent to the math/big.Rat SetString or UnmarshalText method.

 CVE-2024-9676:
 A vulnerability was found in Podman, Buildah, and CRI-O. A symlink traversal vulnerability in the containers/storage library can cause Podman, Buildah, and CRI-O to hang and result in a denial of service via OOM kill when running a malicious image using an automatically assigned user namespace (--userns=auto in Podman and Buildah). The containers/storage library will read /etc/passwd inside the container, but does not properly validate if that file is a symlink, which can be used to cause the library to read an arbitrary file on the host.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

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

https://mirrors.tencent.com/tlinux/errata/tssa-20241105.xml

Plugin Details

Severity: Medium

ID: 239109

File Name: tencentos_TSSA_2024_1105.nasl

Version: 1.3

Type: local

Published: 6/16/2025

Updated: 12/4/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2021-4024

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:tencent:tencentos_server:slirp4netns, p-cpe:/a:tencent:tencentos_server:udica, p-cpe:/a:tencent:tencentos_server:containernetworking-plugins, p-cpe:/a:tencent:tencentos_server:containers-common, p-cpe:/a:tencent:tencentos_server:skopeo, p-cpe:/a:tencent:tencentos_server:netavark, p-cpe:/a:tencent:tencentos_server:podman, cpe:/o:tencent:tencentos_server:3, p-cpe:/a:tencent:tencentos_server:python-podman, p-cpe:/a:tencent:tencentos_server:runc, p-cpe:/a:tencent:tencentos_server:crun, p-cpe:/a:tencent:tencentos_server:conmon, p-cpe:/a:tencent:tencentos_server:criu, p-cpe:/a:tencent:tencentos_server:toolbox, p-cpe:/a:tencent:tencentos_server:aardvark-dns, p-cpe:/a:tencent:tencentos_server:libslirp, p-cpe:/a:tencent:tencentos_server:fuse-overlayfs, p-cpe:/a:tencent:tencentos_server:oci-seccomp-bpf-hook, p-cpe:/a:tencent:tencentos_server:cockpit-podman, p-cpe:/a:tencent:tencentos_server:buildah, p-cpe:/a:tencent:tencentos_server:container-selinux

Required KB Items: Host/local_checks_enabled, Host/etc/os-release, Host/TencentOS/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/26/2024

Vulnerability Publication Date: 11/26/2024

Reference Information

CVE: CVE-2021-33198, CVE-2021-4024, CVE-2024-9676