Debian DSA-4043-1 : samba - security update

2017-11-22T00:00:00
ID DEBIAN_DSA-4043.NASL
Type nessus
Reporter Tenable
Modified 2018-03-16T00:00:00

Description

Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix. The Common Vulnerabilities and Exposures project identifies the following issues :

  • CVE-2017-14746 Yihan Lian and Zhibin Hu of Qihoo 360 GearTeam discovered a use-after-free vulnerability allowing a client to compromise a SMB server via malicious SMB1 requests.

  • CVE-2017-15275 Volker Lendecke of SerNet and the Samba team discovered that Samba is prone to a heap memory information leak, where server allocated heap memory may be returned to the client without being cleared.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4043. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(104722);
  script_version("3.8");
  script_cvs_date("Date: 2018/03/16 18:40:25");

  script_cve_id("CVE-2017-14746", "CVE-2017-15275");
  script_xref(name:"DSA", value:"4043");

  script_name(english:"Debian DSA-4043-1 : samba - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in Samba, a SMB/CIFS
file, print, and login server for Unix. The Common Vulnerabilities and
Exposures project identifies the following issues :

  - CVE-2017-14746
    Yihan Lian and Zhibin Hu of Qihoo 360 GearTeam
    discovered a use-after-free vulnerability allowing a
    client to compromise a SMB server via malicious SMB1
    requests.

  - CVE-2017-15275
    Volker Lendecke of SerNet and the Samba team discovered
    that Samba is prone to a heap memory information leak,
    where server allocated heap memory may be returned to
    the client without being cleared."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-14746"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-15275"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/samba"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/samba"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/samba"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2017/dsa-4043"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the samba packages.

For the oldstable distribution (jessie), these problems have been
fixed in version 2:4.2.14+dfsg-0+deb8u9.

For the stable distribution (stretch), these problems have been fixed
in version 2:4.5.12+dfsg-2+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/22");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 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:"8.0", prefix:"libnss-winbind", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libpam-smbpass", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libpam-winbind", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libparse-pidl-perl", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbclient", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbclient-dev", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbsharemodes-dev", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbsharemodes0", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libwbclient-dev", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libwbclient0", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"python-samba", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"registry-tools", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-common", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-common-bin", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-dbg", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-dev", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-doc", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-dsdb-modules", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-libs", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-testsuite", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"samba-vfs-modules", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"smbclient", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"winbind", reference:"2:4.2.14+dfsg-0+deb8u9")) flag++;
if (deb_check(release:"9.0", prefix:"ctdb", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libnss-winbind", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libpam-winbind", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libparse-pidl-perl", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libsmbclient", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libsmbclient-dev", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libwbclient-dev", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libwbclient0", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python-samba", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"registry-tools", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-common", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-common-bin", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-dev", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-dsdb-modules", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-libs", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-testsuite", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-vfs-modules", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"smbclient", reference:"2:4.5.12+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"winbind", reference:"2:4.5.12+dfsg-2+deb9u1")) 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");