Vulnerabilities > CVE-2015-1607 - Improper Input Validation vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2554-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(82526);
  script_version("1.13");
  script_cvs_date("Date: 2019/12/16");

  script_cve_id("CVE-2014-3591", "CVE-2014-5270", "CVE-2015-0837", "CVE-2015-1606", "CVE-2015-1607");
  script_bugtraq_id(69164, 72609, 72610, 73064, 73066);
  script_xref(name:"USN", value:"2554-1");

  script_name(english:"Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : gnupg, gnupg2 vulnerabilities (USN-2554-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Daniel Genkin, Lev Pachmanov, Itamar Pipman, and Eran Tromer
discovered that GnuPG was susceptible to an attack via physical side
channels. A local attacker could use this attack to possibly recover
private keys. (CVE-2014-3591)

Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was
susceptible to an attack via physical side channels. A local attacker
could use this attack to possibly recover private keys.
(CVE-2015-0837)

Hanno Bock discovered that GnuPG incorrectly handled certain
malformed keyrings. If a user or automated system were tricked into
opening a malformed keyring, a remote attacker could use this issue to
cause GnuPG to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2015-1606, CVE-2015-1607)

In addition, this update improves GnuPG security by validating that
the keys returned by keyservers match those requested.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/2554-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected gnupg and / or gnupg2 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
  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:canonical:ubuntu_linux:gnupg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gnupg2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04|12\.04|14\.04|14\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 12.04 / 14.04 / 14.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"gnupg", pkgver:"1.4.10-2ubuntu1.8")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"gnupg", pkgver:"1.4.11-3ubuntu2.9")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"gnupg2", pkgver:"2.0.17-2ubuntu2.12.04.6")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"gnupg", pkgver:"1.4.16-1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"gnupg2", pkgver:"2.0.22-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"14.10", pkgname:"gnupg", pkgver:"1.4.16-1.2ubuntu1.2")) flag++;
if (ubuntu_check(osver:"14.10", pkgname:"gnupg2", pkgver:"2.0.24-1ubuntu2.2")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "gnupg / gnupg2");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:2171-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(87197);
  script_version("2.9");
  script_cvs_date("Date: 2019/11/25");

  script_cve_id("CVE-2015-1606", "CVE-2015-1607");
  script_bugtraq_id(72609, 72610);

  script_name(english:"SUSE SLED12 / SLES12 Security Update : gpg2 (SUSE-SU-2015:2171-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The gpg2 package was updated to fix the following security and non
security issues :

  - CVE-2015-1606: Fixed invalid memory read using a garbled
    keyring (bsc#918089).

  - CVE-2015-1607: Fixed memcpy with overlapping ranges
    (bsc#918090).

  - bsc#955753: Fixed a regression of 'gpg --recv' due to
    keyserver import filter (also boo#952347).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=918089"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=918090"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=952347"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=955753"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-1606/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-1607/"
  );
  # https://www.suse.com/support/update/announcement/2015/suse-su-20152171-1.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ca971964"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-922=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-922=1

To bring your system up-to-date, use 'zypper patch'."
  );
  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:novell:suse_linux:gpg2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gpg2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gpg2-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"gpg2-2.0.24-3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"gpg2-debuginfo-2.0.24-3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"gpg2-debugsource-2.0.24-3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"gpg2-2.0.24-3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"gpg2-debuginfo-2.0.24-3.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"gpg2-debugsource-2.0.24-3.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "gpg2");
}