Debian DLA-247-1 : openssl security update (Logjam)

#%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-247-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(84253);
  script_version("2.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id(
    "CVE-2014-8176",
    "CVE-2015-1789",
    "CVE-2015-1790",
    "CVE-2015-1791",
    "CVE-2015-1792",
    "CVE-2015-4000"
  );
  script_bugtraq_id(
    74733,
    75154,
    75156,
    75157,
    75159,
    75161
  );
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");

  script_name(english:"Debian DLA-247-1 : openssl security update (Logjam)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Multiple vulnerabilities were discovered in OpenSSL, a Secure Sockets
Layer toolkit.

CVE-2014-8176

Praveen Kariyanahalli, Ivan Fratric and Felix Groebert discovered that
an invalid memory free could be triggered when buffering DTLS data.
This could allow remote attackers to cause a denial of service (crash)
or potentially execute arbitrary code. This issue only affected the
oldstable distribution (wheezy).

CVE-2015-1789

Robert Swiecki and Hanno B??ck discovered that the X509_cmp_time
function could read a few bytes out of bounds. This could allow remote
attackers to cause a denial of service (crash) via crafted
certificates and CRLs.

CVE-2015-1790

Michal Zalewski discovered that the PKCS#7 parsing code did not
properly handle missing content which could lead to a NULL pointer
dereference. This could allow remote attackers to cause a denial of
service (crash) via crafted ASN.1-encoded PKCS#7 blobs.

CVE-2015-1791

Emilia K??sper discovered that a race condition could occur due to
incorrect handling of NewSessionTicket in a multi-threaded client,
leading to a double free. This could allow remote attackers to cause a
denial of service (crash).

CVE-2015-1792

Johannes Bauer discovered that the CMS code could enter an infinite
loop when verifying a signedData message, if presented with an unknown
hash function OID. This could allow remote attackers to cause a denial
of service.

Additionally OpenSSL will now reject handshakes using DH parameters
shorter than 768 bits as a countermeasure against the Logjam attack
(CVE-2015-4000).

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/2015/06/msg00013.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/squeeze-lts/openssl");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcrypto0.9.8-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libssl-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libssl0.9.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libssl0.9.8-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2015-2022 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:"6.0", prefix:"libcrypto0.9.8-udeb", reference:"0.9.8o-4squeeze21")) flag++;
if (deb_check(release:"6.0", prefix:"libssl-dev", reference:"0.9.8o-4squeeze21")) flag++;
if (deb_check(release:"6.0", prefix:"libssl0.9.8", reference:"0.9.8o-4squeeze21")) flag++;
if (deb_check(release:"6.0", prefix:"libssl0.9.8-dbg", reference:"0.9.8o-4squeeze21")) flag++;
if (deb_check(release:"6.0", prefix:"openssl", reference:"0.9.8o-4squeeze21")) 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");