Debian DLA-2268-2 : mutt regression update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2268-2. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(137911);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2020-14093", "CVE-2020-14954");

  script_name(english:"Debian DLA-2268-2 : mutt regression update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Two vulnerabilities have been discovered in mutt, a console email
client.

CVE-2020-14093

Mutt allowed an IMAP fcc/postpone man-in-the-middle attack via a
PREAUTH response.

CVE-2020-14954

Mutt had a STARTTLS buffering issue that affected IMAP, SMTP, and
POP3. When a server had sent a 'begin TLS' response, the client read
additional data (e.g., from a man-in-the-middle attacker) and
evaluated it in a TLS context, aka 'response injection.'

In Debian jessie, the mutt source package builds two variants of mutt:
mutt and mutt-patched.

The previous package version (1.5.23-3+deb8u2, DLA-2268-1) provided
fixes for the issues referenced above, but they were only applied for
the mutt-patched package build, not for the (vanilla) mutt package
build.

For Debian 8 'Jessie', this problem has been fixed in version
1.5.23-3+deb8u3.

We recommend that you upgrade your mutt packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2020/06/msg00040.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/mutt"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Upgrade the affected mutt, mutt-dbg, and mutt-patched packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-14954");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mutt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mutt-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mutt-patched");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/06/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"8.0", prefix:"mutt", reference:"1.5.23-3+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"mutt-dbg", reference:"1.5.23-3+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"mutt-patched", reference:"1.5.23-3+deb8u3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");