Alibaba Cloud Linux 3 : 0089: cryptsetup (ALINUX3-SA-2021:0089)

high Nessus Plugin ID 236352

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-2021:0089 advisory.

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

CVE-2020-14382:
A vulnerability was found in upstream release cryptsetup-2.2.0 where, there's a bug in LUKS2 format validation code, that is effectively invoked on every device/image presenting itself as LUKS2 container.
The bug is in segments validation code in file 'lib/luks2/luks2_json_metadata.c' in function hdr_validate_segments(struct crypt_device *cd, json_object *hdr_jobj) where the code does not check for possible overflow on memory allocation used for intervals array (see statement intervals = malloc(first_backup * sizeof(*intervals));). Due to the bug, library can be *tricked* to expect such allocation was successful but for far less memory then originally expected. Later it may read data FROM image crafted by an attacker and actually write such data BEYOND allocated memory.

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: High

ID: 236352

File Name: alinux3_sa_2021-0089.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: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2020-14382

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-libs-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-devel, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:integritysetup, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:integritysetup-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-libs, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-reencrypt-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-reencrypt, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:veritysetup, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:veritysetup-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cryptsetup-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2021

Vulnerability Publication Date: 9/3/2020

Reference Information

CVE: CVE-2020-14382

Detections

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