Oracle Linux 7 : conmon (ELSA-2024-12189)

medium Nessus Plugin ID 191470


The remote Oracle Linux host is missing a security update.


The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-12189 advisory.

- A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small. (CVE-2023-39326)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 191470

File Name: oraclelinux_ELSA-2024-12189.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/1/2024

Updated: 3/8/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information


Risk Factor: Low

Score: 2.2


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2023-39326


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/a:oracle:linux:7::olcne16, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:conmon, p-cpe:/a:oracle:linux:cri-o, p-cpe:/a:oracle:linux:cri-tools, p-cpe:/a:oracle:linux:flannel-cni-plugin, p-cpe:/a:oracle:linux:helm, p-cpe:/a:oracle:linux:istio, p-cpe:/a:oracle:linux:istio-istioctl, p-cpe:/a:oracle:linux:kata, p-cpe:/a:oracle:linux:kata-agent, p-cpe:/a:oracle:linux:kata-image, p-cpe:/a:oracle:linux:kata-ksm-throttler, p-cpe:/a:oracle:linux:kata-proxy, p-cpe:/a:oracle:linux:kata-runtime, p-cpe:/a:oracle:linux:kata-shim, p-cpe:/a:oracle:linux:kubeadm, p-cpe:/a:oracle:linux:kubectl, p-cpe:/a:oracle:linux:kubelet, p-cpe:/a:oracle:linux:kubernetes-cni, p-cpe:/a:oracle:linux:kubernetes-cni-plugins, p-cpe:/a:oracle:linux:olcne-agent, p-cpe:/a:oracle:linux:olcne-api-server, p-cpe:/a:oracle:linux:olcne-calico-chart, p-cpe:/a:oracle:linux:olcne-gluster-chart, p-cpe:/a:oracle:linux:olcne-grafana-chart, p-cpe:/a:oracle:linux:olcne-istio-chart, p-cpe:/a:oracle:linux:olcne-metallb-chart, p-cpe:/a:oracle:linux:olcne-multus-chart, p-cpe:/a:oracle:linux:olcne-nginx, p-cpe:/a:oracle:linux:olcne-oci-ccm-chart, p-cpe:/a:oracle:linux:olcne-olm-chart, p-cpe:/a:oracle:linux:olcne-prometheus-chart, p-cpe:/a:oracle:linux:olcne-utils, p-cpe:/a:oracle:linux:olcnectl, p-cpe:/a:oracle:linux:yq

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Ease: No known exploits are available

Patch Publication Date: 3/1/2024

Vulnerability Publication Date: 12/6/2023

Reference Information

CVE: CVE-2023-39326

IAVB: 2023-B-0096-S