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nessusThis script is Copyright (C) 2015-2021 Tenable Network Security, Inc.DEBIAN_DLA-295.NASL
HistoryAug 20, 2015 - 12:00 a.m.

Debian DLA-295-1 : conntrack security update

2015-08-2000:00:00
This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.
www.tenable.com
9

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.02 Low

EPSS

Percentile

89.0%

‘jann’ discovered that in certain configurations, if the relevant conntrack kernel module is not loaded, conntrackd will crash when handling DCCP, SCTP or ICMPv6 packets. In the version found in Debian 6.0 ‘squeeze’, this vulnerability only applies to ICMPv6.

For the oldoldstable distribution (squeeze), this problem has been fixed in version 1:0.9.14-2+deb6u1.

For the oldstable distribution (wheezy) and stable distribution (jessie), this problem will be fixed soon.

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.

#%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-295-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(85547);
  script_version("2.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2015-6496");

  script_name(english:"Debian DLA-295-1 : conntrack 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:
"'jann' discovered that in certain configurations, if the relevant
conntrack kernel module is not loaded, conntrackd will crash when
handling DCCP, SCTP or ICMPv6 packets. In the version found in Debian
6.0 'squeeze', this vulnerability only applies to ICMPv6.

For the oldoldstable distribution (squeeze), this problem has been
fixed in version 1:0.9.14-2+deb6u1.

For the oldstable distribution (wheezy) and stable distribution
(jessie), this problem will be fixed soon.

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/2015/08/msg00009.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/conntrack"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected conntrack, and conntrackd 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:U/RL:OF/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:conntrack");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:conntrackd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/08/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
  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:"6.0", prefix:"conntrack", reference:"1:0.9.14-2+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"conntrackd", reference:"1:0.9.14-2+deb6u1")) 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");
VendorProductVersionCPE
debiandebian_linuxconntrackp-cpe:/a:debian:debian_linux:conntrack
debiandebian_linuxconntrackdp-cpe:/a:debian:debian_linux:conntrackd
debiandebian_linux6.0cpe:/o:debian:debian_linux:6.0

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.02 Low

EPSS

Percentile

89.0%