Debian DLA-2615-1 : spamassassin security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2615-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(148301);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/06");

  script_cve_id("CVE-2020-1946");
  script_xref(name:"IAVA", value:"2021-A-0148");

  script_name(english:"Debian DLA-2615-1 : spamassassin security 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:
"Damian Lukowski discovered a flaw in spamassassin, a Perl-based spam
filter using text analysis. Malicious rule configuration files,
possibly downloaded from an updates server, could execute arbitrary
commands under multiple scenarios.

For Debian 9 stretch, this problem has been fixed in version
3.4.2-1~deb9u4.

We recommend that you upgrade your spamassassin packages.

For the detailed security status of spamassassin please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/spamassassin

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/2021/04/msg00000.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/spamassassin"
  );
  # https://security-tracker.debian.org/tracker/source-package/spamassassin
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?92e1b8a1"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Upgrade the affected sa-compile, spamassassin, and spamc packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1946");
  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:sa-compile");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:spamassassin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:spamc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/02");
  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_copyright(english:"This script is Copyright (C) 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:"9.0", prefix:"sa-compile", reference:"3.4.2-1~deb9u4")) flag++;
if (deb_check(release:"9.0", prefix:"spamassassin", reference:"3.4.2-1~deb9u4")) flag++;
if (deb_check(release:"9.0", prefix:"spamc", reference:"3.4.2-1~deb9u4")) flag++;

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