Debian DLA-1105-1 : clamav security update

2017-09-25T00:00:00
ID DEBIAN_DLA-1105.NASL
Type nessus
Reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2017-09-25T00:00:00

Description

clamav is vulnerable to multiple issues that can lead to denial of service when processing untrusted content.

CVE-2017-6418

out-of-bounds read in libclamav/message.c, allowing remote attackers to cause a denial of service via a crafted e-mail message.

CVE-2017-6420

use-after-free in the wwunpack function (libclamav/wwunpack.c), allowing remote attackers to cause a denial of service via a crafted PE file with WWPack compression.

For Debian 7 'Wheezy', these problems have been fixed in version 0.99.2+dfsg-0+deb7u3.

We recommend that you upgrade your clamav 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.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1105-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(103427);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2017-6418", "CVE-2017-6420");

  script_name(english:"Debian DLA-1105-1 : clamav 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:
"clamav is vulnerable to multiple issues that can lead to denial of
service when processing untrusted content.

CVE-2017-6418

out-of-bounds read in libclamav/message.c, allowing remote attackers
to cause a denial of service via a crafted e-mail message.

CVE-2017-6420

use-after-free in the wwunpack function (libclamav/wwunpack.c),
allowing remote attackers to cause a denial of service via a crafted
PE file with WWPack compression.

For Debian 7 'Wheezy', these problems have been fixed in version
0.99.2+dfsg-0+deb7u3.

We recommend that you upgrade your clamav 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/2017/09/msg00023.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/clamav"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-freshclam");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-milter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:clamav-testfiles");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libclamav-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libclamav7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/09/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 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:"7.0", prefix:"clamav", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-base", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-daemon", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-dbg", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-docs", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-freshclam", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-milter", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"clamav-testfiles", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libclamav-dev", reference:"0.99.2+dfsg-0+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"libclamav7", reference:"0.99.2+dfsg-0+deb7u3")) 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");