Fedora 21 : libpng10-1.0.64-1.fc21 (2015-501493d853)

2016-03-04T00:00:00
ID FEDORA_2015-501493D853.NASL
Type nessus
Reporter Tenable
Modified 2016-03-21T00:00:00

Description

An out-of-bounds read in png_convert_to_rfc1123() in png.c could potentially be exploited by a crafted PNG file to leak information from an application's memory (CVE-2015-7981). Buffer overflow vulnerabilities in functions png_get_PLTE/png_set_PLTE, allowing remote attackers to cause DoS to application or have unspecified other impact (CVE-2015-8126). Also includes various other small bug fixes as detailed in the package changelog.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2015-501493d853.
#

include("compat.inc");

if (description)
{
  script_id(89239);
  script_version("$Revision: 2.3 $");
  script_cvs_date("$Date: 2016/03/21 15:01:55 $");

  script_cve_id("CVE-2015-7981", "CVE-2015-8126");
  script_xref(name:"FEDORA", value:"2015-501493d853");

  script_name(english:"Fedora 21 : libpng10-1.0.64-1.fc21 (2015-501493d853)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An out-of-bounds read in png_convert_to_rfc1123() in png.c could
potentially be exploited by a crafted PNG file to leak information
from an application's memory (CVE-2015-7981). Buffer overflow
vulnerabilities in functions png_get_PLTE/png_set_PLTE, allowing
remote attackers to cause DoS to application or have unspecified other
impact (CVE-2015-8126). Also includes various other small bug fixes as
detailed in the package changelog.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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.redhat.com/show_bug.cgi?id=1276416"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=1281756"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2015-November/172663.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0481b2d1"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libpng10 package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:libpng10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:21");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/11/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^21([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 21.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) 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, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC21", reference:"libpng10-1.0.64-1.fc21")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libpng10");
}