The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2020 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.892328");
script_cve_id("CVE-2020-12100", "CVE-2020-12673", "CVE-2020-12674");
script_tag(name:"creation_date", value:"2020-08-17 13:22:26 +0000 (Mon, 17 Aug 2020)");
script_version("2024-02-02T05:06:07+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-08-17 14:26:58 +0000 (Mon, 17 Aug 2020)");
script_name("Debian: Security Advisory (DLA-2328-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone AG");
script_family("Debian Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB9");
script_xref(name:"Advisory-ID", value:"DLA-2328-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2020/DLA-2328-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/dovecot");
script_xref(name:"URL", value:"https://wiki.debian.org/LTS");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'dovecot' package(s) announced via the DLA-2328-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several vulnerabilities have been discovered in the Dovecot email server.
CVE-2020-12100
Receiving mail with deeply nested MIME parts leads to resource exhaustion as Dovecot attempts to parse it.
CVE-2020-12673
Dovecot's NTLM implementation does not correctly check message buffer size, which leads to a crash when reading past allocation.
CVE-2020-12674
Dovecot's RPA mechanism implementation accepts zero-length message, which leads to assert-crash later on.
For Debian 9 stretch, these problems have been fixed in version 1:2.2.27-3+deb9u6.
We recommend that you upgrade your dovecot packages.
For the detailed security status of dovecot please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");
script_tag(name:"affected", value:"'dovecot' package(s) on Debian 9.");
script_tag(name:"solution", value:"Please install the updated package(s).");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"package");
exit(0);
}
include("revisions-lib.inc");
include("pkg-lib-deb.inc");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"dovecot-core", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-dbg", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-dev", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-gssapi", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-imapd", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-ldap", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-lmtpd", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-lucene", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-managesieved", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-mysql", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-pgsql", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-pop3d", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-sieve", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-solr", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"dovecot-sqlite", ver:"1:2.2.27-3+deb9u6", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);