5 Medium
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
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.027 Low
EPSS
Percentile
90.6%
An infinite loop in several big integer routines was discovered that makes Go programs vulnerable to remote denial of service attacks.
Programs using HTTPS client authentication or the Go ssh server libraries are both exposed to this vulnerability.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2016-687.
#
include("compat.inc");
if (description)
{
script_id(90629);
script_version("2.4");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2016-3959");
script_xref(name:"ALAS", value:"2016-687");
script_name(english:"Amazon Linux AMI : golang (ALAS-2016-687)");
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:
"An infinite loop in several big integer routines was discovered that
makes Go programs vulnerable to remote denial of service attacks.
Programs using HTTPS client authentication or the Go ssh server
libraries are both exposed to this vulnerability."
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2016-687.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update golang' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-docs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-misc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-src");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:golang-tests");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2016/04/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/04/22");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2018 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:"golang-1.5.3-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"golang-bin-1.5.3-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"golang-docs-1.5.3-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"golang-misc-1.5.3-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"golang-src-1.5.3-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"golang-tests-1.5.3-1.21.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, "golang / golang-bin / golang-docs / golang-misc / golang-src / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | golang | p-cpe:/a:amazon:linux:golang |
amazon | linux | golang-bin | p-cpe:/a:amazon:linux:golang-bin |
amazon | linux | golang-docs | p-cpe:/a:amazon:linux:golang-docs |
amazon | linux | golang-misc | p-cpe:/a:amazon:linux:golang-misc |
amazon | linux | golang-src | p-cpe:/a:amazon:linux:golang-src |
amazon | linux | golang-tests | p-cpe:/a:amazon:linux:golang-tests |
amazon | linux | cpe:/o:amazon:linux |
5 Medium
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
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.027 Low
EPSS
Percentile
90.6%