Alibaba Cloud Linux 3 : 0032: curl (ALINUX3-SA-2023:0032)

medium Nessus Plugin ID 236582

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2023:0032 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2023-23916:
An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the chained HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable links in this decompression chain wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a malloc bomb, making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.

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

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

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 236582

File Name: alinux3_sa_2023-0032.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2023-23916

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:curl-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcurl-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcurl-minimal-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcurl-debuginfo, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcurl, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:curl-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:curl-minimal, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:curl-doc, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:curl-minimal-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libcurl-minimal, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:curl

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Alibaba/release, Host/Alibaba/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/8/2023

Vulnerability Publication Date: 2/17/2023

Reference Information

CVE: CVE-2023-23916

Detections

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