Debian DLA-2044-1 : cyrus-sasl2 security 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-2044-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(132344);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/02");

  script_cve_id("CVE-2019-19906");

  script_name(english:"Debian DLA-2044-1 : cyrus-sasl2 security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"There has been an out-of-bounds write in Cyrus SASL leading to
unauthenticated remote denial of service in OpenLDAP via a malformed
LDAP packet. The OpenLDAP crash was ultimately caused by an off-by-one
error in _sasl_add_string in common.c in cyrus-sasl.

For Debian 8 'Jessie', this problem has been fixed in version
2.1.26.dfsg1-13+deb8u2.

We recommend that you upgrade your cyrus-sasl2 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/2019/12/msg00027.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/cyrus-sasl2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected 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:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-19906");

  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:"2019/12/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cyrus-sasl2-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cyrus-sasl2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cyrus-sasl2-heimdal-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cyrus-sasl2-mit-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules-db");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules-gssapi-heimdal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules-gssapi-mit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules-otp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsasl2-modules-sql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:sasl2-bin");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 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("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:"cyrus-sasl2-dbg", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"cyrus-sasl2-doc", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"cyrus-sasl2-heimdal-dbg", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"cyrus-sasl2-mit-dbg", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-2", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-dev", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules-db", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules-gssapi-heimdal", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules-gssapi-mit", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules-ldap", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules-otp", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libsasl2-modules-sql", reference:"2.1.26.dfsg1-13+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"sasl2-bin", reference:"2.1.26.dfsg1-13+deb8u2")) 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");