An out-of-bounds read flaw was found in the way glibc’s iconv() function converted certain encoded data to UTF-8. An attacker able to make an application call the iconv() function with a specially crafted argument could use this flaw to crash that application.
(CVE-2014-6040)
It was found that the files back end of Name Service Switch (NSS) did not isolate iteration over an entire database from key-based look-up API calls. An application performing look-ups on a database while iterating over it could enter an infinite loop, leading to a denial of service. (CVE-2014-8121)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2015-495.
#
include("compat.inc");
if (description)
{
script_id(82044);
script_version("1.2");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2014-6040", "CVE-2014-8121");
script_xref(name:"ALAS", value:"2015-495");
script_name(english:"Amazon Linux AMI : glibc (ALAS-2015-495)");
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 out-of-bounds read flaw was found in the way glibc's iconv()
function converted certain encoded data to UTF-8. An attacker able to
make an application call the iconv() function with a specially crafted
argument could use this flaw to crash that application.
(CVE-2014-6040)
It was found that the files back end of Name Service Switch (NSS) did
not isolate iteration over an entire database from key-based look-up
API calls. An application performing look-ups on a database while
iterating over it could enter an infinite loop, leading to a denial of
service. (CVE-2014-8121)"
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2015-495.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update glibc' 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:glibc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-debuginfo-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-static");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:glibc-utils");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:nscd");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2015/03/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/25");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2018 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:"glibc-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-common-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-debuginfo-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-debuginfo-common-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-devel-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-headers-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-static-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"glibc-utils-2.17-55.139.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"nscd-2.17-55.139.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, "glibc / glibc-common / glibc-debuginfo / glibc-debuginfo-common / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | glibc | p-cpe:/a:amazon:linux:glibc |
amazon | linux | glibc-common | p-cpe:/a:amazon:linux:glibc-common |
amazon | linux | glibc-debuginfo | p-cpe:/a:amazon:linux:glibc-debuginfo |
amazon | linux | glibc-debuginfo-common | p-cpe:/a:amazon:linux:glibc-debuginfo-common |
amazon | linux | glibc-devel | p-cpe:/a:amazon:linux:glibc-devel |
amazon | linux | glibc-headers | p-cpe:/a:amazon:linux:glibc-headers |
amazon | linux | glibc-static | p-cpe:/a:amazon:linux:glibc-static |
amazon | linux | glibc-utils | p-cpe:/a:amazon:linux:glibc-utils |
amazon | linux | nscd | p-cpe:/a:amazon:linux:nscd |
amazon | linux | cpe:/o:amazon:linux |