ID REDHAT-RHSA-2016-2601.NASL Type nessus Reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. Modified 2019-11-02T00:00:00
Description
An update for fontconfig is now available for Red Hat Enterprise Linux
7.
Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.
Fontconfig is designed to locate fonts within the system and select
them according to requirements specified by applications.
Security Fix(es) :
It was found that cache files were insufficiently validated in
fontconfig. A local attacker could create a specially crafted cache
file to trigger arbitrary free() calls, which in turn could lead to
arbitrary code execution. (CVE-2016-5384)
Red Hat would like to thank Tobias Stoeckmann for reporting this
issue.
Additional Changes :
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 Release Notes linked from the References section.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2016:2601. The text
# itself is copyright (C) Red Hat, Inc.
#
include("compat.inc");
if (description)
{
script_id(94564);
script_version("2.12");
script_cvs_date("Date: 2019/10/24 15:35:42");
script_cve_id("CVE-2016-5384");
script_xref(name:"RHSA", value:"2016:2601");
script_name(english:"RHEL 7 : fontconfig (RHSA-2016:2601)");
script_summary(english:"Checks the rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"An update for fontconfig is now available for Red Hat Enterprise Linux
7.
Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.
Fontconfig is designed to locate fonts within the system and select
them according to requirements specified by applications.
Security Fix(es) :
* It was found that cache files were insufficiently validated in
fontconfig. A local attacker could create a specially crafted cache
file to trigger arbitrary free() calls, which in turn could lead to
arbitrary code execution. (CVE-2016-5384)
Red Hat would like to thank Tobias Stoeckmann for reporting this
issue.
Additional Changes :
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 Release Notes linked from the References section."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2016:2601"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2016-5384"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:fontconfig");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:fontconfig-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:fontconfig-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:fontconfig-devel-doc");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.4");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.7");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/08/13");
script_set_attribute(attribute:"patch_publication_date", value:"2016/11/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/04");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2016:2601";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL7", reference:"fontconfig-2.10.95-10.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"fontconfig-debuginfo-2.10.95-10.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"fontconfig-devel-2.10.95-10.el7")) flag++;
if (rpm_check(release:"RHEL7", reference:"fontconfig-devel-doc-2.10.95-10.el7")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fontconfig / fontconfig-debuginfo / fontconfig-devel / etc");
}
}
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(CVE-2016-5384)\n\nRed Hat would like to thank Tobias Stoeckmann for reporting this\nissue.\n\nAdditional Changes :\n\nFor detailed information on changes in this release, see the Red Hat\nEnterprise Linux 7.3 Release Notes linked from the References section.", "published": "2016-11-04T00:00:00", "modified": "2019-11-02T00:00:00", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}, "href": "https://www.tenable.com/plugins/nessus/94564", "reporter": "This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.", "references": ["https://access.redhat.com/errata/RHSA-2016:2601", "https://access.redhat.com/security/cve/cve-2016-5384"], "cvelist": ["CVE-2016-5384"], "type": "nessus", "lastseen": "2019-11-01T03:21:15", "history": [{"bulletin": {"bulletinFamily": "scanner", "cpe": ["p-cpe:/a:redhat:enterprise_linux:fontconfig-devel", "p-cpe:/a:redhat:enterprise_linux:fontconfig", "p-cpe:/a:redhat:enterprise_linux:fontconfig-debuginfo", "cpe:/o:redhat:enterprise_linux:7", "p-cpe:/a:redhat:enterprise_linux:fontconfig-devel-doc"], "cvelist": ["CVE-2016-5384"], "cvss": {"score": 4.6, "vector": "AV:LOCAL/AC:LOW/Au:NONE/C:PARTIAL/I:PARTIAL/A:PARTIAL/"}, "description": "An update for fontconfig is now available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. 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(CVE-2016-5384)\n\nRed Hat would like to thank Tobias Stoeckmann for reporting this issue.\n\nAdditional Changes :\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.", "edition": 4, "enchantments": {"score": {"value": 7.2, "vector": "NONE"}}, "hash": "d19e9188029e7a534e9573d8619c6075c9e69d7e0fa32841152ba15fa71db7f6", "hashmap": [{"hash": "b68420fbc58785f81e6c2e18356ed376", "key": "references"}, {"hash": "e0f2d48f6ec91d7a909e501ecdd33f69", "key": "title"}, {"hash": "10bfa2ea3c79694577118a7e9e91b08a", "key": "href"}, {"hash": "aae6dd582add12436b2ded44c836c9ca", "key": "cpe"}, {"hash": "9cf00d658b687f030ebe173a0528c567", "key": "reporter"}, {"hash": "cee38bdf685ff9779ffd7dfa84830914", "key": "pluginID"}, {"hash": "a6e487b241db96af61fe671a1b90b041", "key": "modified"}, {"hash": "9207c1578081472aaf1cc43e45d73b38", "key": "sourceData"}, {"hash": "f8440b005c792bdda892bfb45c819f9b", "key": "description"}, {"hash": "bbdaea376f500d25f6b0c1050311dd07", "key": "bulletinFamily"}, {"hash": "5e0bd03bec244039678f2b955a2595aa", "key": "type"}, {"hash": "8e2f2de9608dd67e7af84820a5ac23e2", "key": "cvelist"}, {"hash": "292f2e293571b0e70e3182b615982dad", "key": "cvss"}, {"hash": "b46559ea68ec9a13474c3a7776817cfd", "key": "naslFamily"}, {"hash": "4bc6b80b5892c540867a1eda8521b11d", "key": "published"}], "history": [], "href": "https://www.tenable.com/plugins/index.php?view=single&id=94564", "id": "REDHAT-RHSA-2016-2601.NASL", "lastseen": "2017-10-29T13:45:09", "modified": "2017-01-10T00:00:00", "naslFamily": "Red Hat Local Security Checks", "objectVersion": "1.3", "pluginID": "94564", "published": "2016-11-04T00:00:00", "references": ["http://rhn.redhat.com/errata/RHSA-2016-2601.html", "https://www.redhat.com/security/data/cve/CVE-2016-5384.html", "http://www.nessus.org/u?e4086253"], "reporter": "Tenable", "sourceData": "#\n# (C) Tenable Network Security, Inc.\n#\n# The descriptive text and package checks in this plugin were \n# extracted from Red Hat Security Advisory RHSA-2016:2601. The text \n# itself is copyright (C) Red Hat, Inc.\n#\n\ninclude(\"compat.inc\");\n\nif (description)\n{\n script_id(94564);\n script_version(\"$Revision: 2.3 $\");\n script_cvs_date(\"$Date: 2017/01/10 20:46:33 $\");\n\n script_cve_id(\"CVE-2016-5384\");\n script_osvdb_id(142659);\n script_xref(name:\"RHSA\", value:\"2016:2601\");\n\n script_name(english:\"RHEL 7 : fontconfig (RHSA-2016:2601)\");\n script_summary(english:\"Checks the rpm output for the updated packages\");\n\n script_set_attribute(\n attribute:\"synopsis\", \n value:\"The remote Red Hat host is missing one or more security updates.\"\n );\n script_set_attribute(\n attribute:\"description\", \n value:\n\"An update for fontconfig is now available for Red Hat Enterprise Linux\n7.\n\nRed Hat Product Security has rated this update as having a security\nimpact of Moderate. A Common Vulnerability Scoring System (CVSS) base\nscore, which gives a detailed severity rating, is available for each\nvulnerability from the CVE link(s) in the References section.\n\nFontconfig is designed to locate fonts within the system and select\nthem according to requirements specified by applications.\n\nSecurity Fix(es) :\n\n* It was found that cache files were insufficiently validated in\nfontconfig. A local attacker could create a specially crafted cache\nfile to trigger arbitrary free() calls, which in turn could lead to\narbitrary code execution. (CVE-2016-5384)\n\nRed Hat would like to thank Tobias Stoeckmann for reporting this\nissue.\n\nAdditional Changes :\n\nFor detailed information on changes in this release, see the Red Hat\nEnterprise Linux 7.3 Release Notes linked from the References section.\"\n );\n script_set_attribute(\n attribute:\"see_also\",\n value:\"https://www.redhat.com/security/data/cve/CVE-2016-5384.html\"\n );\n # https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/\n script_set_attribute(\n attribute:\"see_also\",\n value:\"http://www.nessus.org/u?e4086253\"\n );\n script_set_attribute(\n attribute:\"see_also\",\n value:\"http://rhn.redhat.com/errata/RHSA-2016-2601.html\"\n );\n script_set_attribute(attribute:\"solution\", value:\"Update the affected packages.\");\n script_set_cvss_base_vector(\"CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P\");\n script_set_cvss_temporal_vector(\"CVSS2#E:U/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\");\n script_set_attribute(attribute:\"exploitability_ease\", value:\"No known exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"false\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:redhat:enterprise_linux:fontconfig\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:redhat:enterprise_linux:fontconfig-debuginfo\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:redhat:enterprise_linux:fontconfig-devel\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:redhat:enterprise_linux:fontconfig-devel-doc\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:redhat:enterprise_linux:7\");\n\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2016/11/03\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2016/11/04\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_copyright(english:\"This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.\");\n script_family(english:\"Red Hat Local Security Checks\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/RedHat/release\", \"Host/RedHat/rpm-list\", \"Host/cpu\");\n\n exit(0);\n}\n\n\ninclude(\"audit.inc\");\ninclude(\"global_settings.inc\");\ninclude(\"misc_func.inc\");\ninclude(\"rpm.inc\");\n\nif (!get_kb_item(\"Host/local_checks_enabled\")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nrelease = get_kb_item(\"Host/RedHat/release\");\nif (isnull(release) || \"Red Hat\" >!< release) audit(AUDIT_OS_NOT, \"Red Hat\");\nos_ver = eregmatch(pattern: \"Red Hat Enterprise Linux.*release ([0-9]+(\\.[0-9]+)?)\", string:release);\nif (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, \"Red Hat\");\nos_ver = os_ver[1];\nif (! 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A local attacker could possibly use this issue with a specially crafted cache file to elevate privileges.", "modified": "2016-08-17T00:00:00", "published": "2016-08-17T00:00:00", "id": "USN-3063-1", "href": "https://usn.ubuntu.com/3063-1/", "title": "Fontconfig vulnerability", "type": "ubuntu", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "freebsd": [{"lastseen": "2019-05-29T18:32:33", "bulletinFamily": "unix", "description": "\nDebian security team reports:\n\nTobias Stoeckmann discovered that cache files are insufficiently\n\t validated in fontconfig, a generic font configuration library. An\n\t attacker can trigger arbitrary free() calls, which in turn allows\n\t double free attacks and therefore arbitrary code execution. In\n\t combination with setuid binaries using crafted cache files, this\n\t could allow privilege escalation.\n\n", "modified": "2016-08-05T00:00:00", "published": "2016-08-05T00:00:00", "id": "44989C29-67D1-11E6-8B1D-C86000169601", "href": "https://vuxml.freebsd.org/freebsd/44989c29-67d1-11e6-8b1d-c86000169601.html", "title": "fontconfig -- insufficiently cache file validation", "type": "freebsd", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "cloudfoundry": [{"lastseen": "2019-05-29T18:32:59", "bulletinFamily": "software", "description": "USN-3063-1 Fontconfig vulnerability\n\n# \n\nMedium\n\n# Vendor\n\nCanonical Ubuntu, fontconfig\n\n# Versions Affected\n\nCanonical Ubuntu 14.04 LTS\n\n# Description\n\nTobias Stoeckmann discovered that Fontconfig incorrectly handled cache files. A local attacker could possibly use this issue with a specially crafted cache file to elevate privileges.\n\n# Affected Products and Versions\n\n_Severity is medium unless otherwise noted. \n_\n\n * All versions of Cloud Foundry cflinuxfs2 prior to v.1.76.0\n\n# Mitigation\n\nUsers of affected versions should apply the following mitigation:\n\n * The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 v.1.76.0 or later versions\n\n# Credit\n\nTobias Stoeckmann\n\n# References\n\n * <http://www.ubuntu.com/usn/usn-3063-1/>\n * <http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5384.html>\n", "modified": "2016-08-25T00:00:00", "published": "2016-08-25T00:00:00", "id": "CFOUNDRY:312BC0F7A193E486BCD11200AD355D52", "href": "https://www.cloudfoundry.org/blog/usn-3063-1/", "title": "USN-3063-1 Fontconfig vulnerability | Cloud Foundry", "type": "cloudfoundry", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}], "redhat": [{"lastseen": "2019-08-13T18:45:34", "bulletinFamily": "unix", "description": "Fontconfig is designed to locate fonts within the system and select them according to requirements specified by applications.\n\nSecurity Fix(es):\n\n* It was found that cache files were insufficiently validated in fontconfig. A local attacker could create a specially crafted cache file to trigger arbitrary free() calls, which in turn could lead to arbitrary code execution. (CVE-2016-5384)\n\nRed Hat would like to thank Tobias Stoeckmann for reporting this issue.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.", "modified": "2018-04-12T03:33:13", "published": "2016-11-03T10:07:16", "id": "RHSA-2016:2601", "href": "https://access.redhat.com/errata/RHSA-2016:2601", "type": "redhat", "title": "(RHSA-2016:2601) Moderate: fontconfig security and bug fix update", "cvss": {"score": 4.6, "vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P"}}]}