Integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 and other products, might allow context-dependent attackers to execute arbitrary code via a large regular expression that leads to a heap-based buffer overflow.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2015-524.
#
include("compat.inc");
if (description)
{
script_id(83494);
script_version("2.4");
script_cvs_date("Date: 2018/04/18 15:09:35");
script_cve_id("CVE-2015-2305");
script_xref(name:"ALAS", value:"2015-524");
script_name(english:"Amazon Linux AMI : php (ALAS-2015-524)");
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:
"Integer overflow in the regcomp implementation in the Henry Spencer
BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as
used in NetBSD through 6.1.5 and other products, might allow
context-dependent attackers to execute arbitrary code via a large
regular expression that leads to a heap-based buffer overflow."
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/ALAS-2015-524.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update php' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:amazon:linux:php");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-bcmath");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-cli");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-dba");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-embedded");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-enchant");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-fpm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-gd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-imap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-intl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mbstring");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mcrypt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mssql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-mysqlnd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-odbc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-pdo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-pgsql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-process");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-pspell");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-recode");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-snmp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-soap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-tidy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-xml");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php-xmlrpc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2015/05/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/05/18");
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:"php-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-bcmath-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-cli-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-common-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-dba-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-debuginfo-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-devel-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-embedded-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-enchant-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-fpm-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-gd-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-imap-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-intl-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-ldap-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-mbstring-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-mcrypt-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-mssql-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-mysql-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-mysqlnd-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-odbc-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-pdo-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-pgsql-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-process-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-pspell-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-recode-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-snmp-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-soap-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-tidy-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-xml-5.3.29-1.8.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php-xmlrpc-5.3.29-1.8.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, "php / php-bcmath / php-cli / php-common / php-dba / php-debuginfo / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | php | p-cpe:/a:amazon:linux:php |
amazon | linux | php-bcmath | p-cpe:/a:amazon:linux:php-bcmath |
amazon | linux | php-cli | p-cpe:/a:amazon:linux:php-cli |
amazon | linux | php-common | p-cpe:/a:amazon:linux:php-common |
amazon | linux | php-dba | p-cpe:/a:amazon:linux:php-dba |
amazon | linux | php-debuginfo | p-cpe:/a:amazon:linux:php-debuginfo |
amazon | linux | php-devel | p-cpe:/a:amazon:linux:php-devel |
amazon | linux | php-embedded | p-cpe:/a:amazon:linux:php-embedded |
amazon | linux | php-enchant | p-cpe:/a:amazon:linux:php-enchant |
amazon | linux | php-fpm | p-cpe:/a:amazon:linux:php-fpm |