CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
85.9%
The hash functionality in json-c before 0.12 allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted JSON data, involving collisions.
Buffer overflow in the printbuf APIs in json-c before 0.12 allows remote attackers to cause a denial of service via unspecified vectors.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2014-416.
#
include("compat.inc");
if (description)
{
script_id(78359);
script_version("1.3");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2013-6370", "CVE-2013-6371");
script_xref(name:"ALAS", value:"2014-416");
script_name(english:"Amazon Linux AMI : json-c (ALAS-2014-416)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Amazon Linux AMI host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"The hash functionality in json-c before 0.12 allows context-dependent
attackers to cause a denial of service (CPU consumption) via crafted
JSON data, involving collisions.
Buffer overflow in the printbuf APIs in json-c before 0.12 allows
remote attackers to cause a denial of service via unspecified vectors."
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2014-416.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update json-c' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:json-c");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:json-c-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:json-c-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:json-c-doc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2014/09/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/10/12");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
script_family(english:"Amazon Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"ALA", reference:"json-c-0.11-6.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"json-c-debuginfo-0.11-6.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"json-c-devel-0.11-6.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"json-c-doc-0.11-6.8.amzn1")) 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, "json-c / json-c-debuginfo / json-c-devel / json-c-doc");
}