CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
9.6%
The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5752 advisory.
- ------------------------------------------------------------------------- Debian Security Advisory DSA-5752-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff August 21, 2024 https://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : dovecot CVE ID : CVE-2024-23184 CVE-2024-23185
Two vulnerabilities have been discovered in the IMAP implementation of the Dovecot mail server: Excessive numbers of address headers or very large headers can result in high CPU usage, leading to denial of service.
For the stable distribution (bookworm), these problems have been fixed in version 1:2.3.19.1+dfsg1-2.1+deb12u1.
We recommend that you upgrade your dovecot packages.
For the detailed security status of dovecot please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/dovecot
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: [email protected]
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-5752. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(206014);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/11");
script_cve_id("CVE-2024-23184", "CVE-2024-23185");
script_xref(name:"IAVA", value:"2024-A-0504");
script_name(english:"Debian dsa-5752 : dovecot-auth-lua - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dsa-5752 advisory.
- -------------------------------------------------------------------------
Debian Security Advisory DSA-5752-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
August 21, 2024 https://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : dovecot
CVE ID : CVE-2024-23184 CVE-2024-23185
Two vulnerabilities have been discovered in the IMAP implementation of
the Dovecot mail server: Excessive numbers of address headers or very
large headers can result in high CPU usage, leading to denial of
service.
For the stable distribution (bookworm), these problems have been fixed in
version 1:2.3.19.1+dfsg1-2.1+deb12u1.
We recommend that you upgrade your dovecot packages.
For the detailed security status of dovecot please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/dovecot
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/dovecot");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-23184");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-23185");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/dovecot");
script_set_attribute(attribute:"solution", value:
"Upgrade the dovecot-auth-lua packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-23185");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-23184");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2024/08/16");
script_set_attribute(attribute:"patch_publication_date", value:"2024/08/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-auth-lua");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-gssapi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-imapd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-lmtpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-lucene");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-managesieved");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-pgsql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-pop3d");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-sieve");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-solr");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-sqlite");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:dovecot-submissiond");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);
var pkgs = [
{'release': '12.0', 'prefix': 'dovecot-auth-lua', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-core', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-dev', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-gssapi', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-imapd', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-ldap', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-lmtpd', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-lucene', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-managesieved', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-mysql', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-pgsql', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-pop3d', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-sieve', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-solr', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-sqlite', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'},
{'release': '12.0', 'prefix': 'dovecot-submissiond', 'reference': '1:2.3.19.1+dfsg1-2.1+deb12u1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var _release = NULL;
var prefix = NULL;
var reference = NULL;
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (_release && prefix && reference) {
if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : deb_report_get()
);
exit(0);
}
else
{
var tested = deb_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'dovecot-auth-lua / dovecot-core / dovecot-dev / dovecot-gssapi / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-23184
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-23185
packages.debian.org/source/bookworm/dovecot
security-tracker.debian.org/tracker/CVE-2024-23184
security-tracker.debian.org/tracker/CVE-2024-23185
security-tracker.debian.org/tracker/source-package/dovecot
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
9.6%