Detections
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Alibaba Cloud Linux 3 : 0067: cyrus-imapd (ALINUX3-SA-2021:0067)
critical Nessus Plugin ID 236563
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 multiple vulnerabilities as referenced in the ALINUX3-SA-2021:0067 advisory.Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:
CVE-2019-18928:
Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request may be interpreted in the authentication context of an unrelated previous request that arrived over the same connection.
CVE-2019-19783:
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.
CVE-2021-33582:
Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service (multiple-minute daemon hang) via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16.
Tenable has extracted the preceding description block directly from the Alibaba Cloud 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
http://mirrors.aliyun.com/alinux/3/cve/alinux3-sa-20210067.xml
Plugin Details
Severity: Critical
ID: 236563
File Name: alinux3_sa_2021-0067.nasl
Version: 1.1
Type: local
Published: 5/14/2025
Updated: 5/14/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2019-18928
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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:cyrus-imapd-vzic, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-utils, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-vzic-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-utils-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:cyrus-imapd-doc-extra
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: 9/14/2021
Vulnerability Publication Date: 11/15/2019