Vulnerabilities > CVE-2017-6302 - Integer Overflow or Wraparound vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
An issue was discovered in ytnef before 1.9.1. This is related to a patch described as "5 of 9. Integer Overflow."
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 3 | |
OS | 2 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Forced Integer Overflow This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2019-7D7083B8BE.NASL description ytnef 1.9.3 release, fixing a number of security issues : - CVE-2017-9470 - CVE-2017-9471 - CVE-2017-9474 - CVE-2017-9058 - CVE-2017-12142 - CVE-2017-12141 - CVE-2017-12144 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 125273 published 2019-05-20 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/125273 title Fedora 30 : 1:ytnef (2019-7d7083b8be) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2019-7d7083b8be. # include("compat.inc"); if (description) { script_id(125273); script_version("1.4"); script_cvs_date("Date: 2020/01/15"); script_cve_id("CVE-2017-12141", "CVE-2017-12142", "CVE-2017-12144", "CVE-2017-6298", "CVE-2017-6299", "CVE-2017-6300", "CVE-2017-6301", "CVE-2017-6302", "CVE-2017-6303", "CVE-2017-6304", "CVE-2017-6305", "CVE-2017-6306", "CVE-2017-6800", "CVE-2017-6801", "CVE-2017-6802", "CVE-2017-9058", "CVE-2017-9146", "CVE-2017-9470", "CVE-2017-9471", "CVE-2017-9472", "CVE-2017-9473", "CVE-2017-9474"); script_xref(name:"FEDORA", value:"2019-7d7083b8be"); script_name(english:"Fedora 30 : 1:ytnef (2019-7d7083b8be)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "ytnef 1.9.3 release, fixing a number of security issues : - CVE-2017-9470 - CVE-2017-9471 - CVE-2017-9474 - CVE-2017-9058 - CVE-2017-12142 - CVE-2017-12141 - CVE-2017-12144 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2019-7d7083b8be" ); script_set_attribute( attribute:"solution", value:"Update the affected 1:ytnef package." ); script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:1:ytnef"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:30"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/24"); script_set_attribute(attribute:"patch_publication_date", value:"2019/05/18"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/20"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^30([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 30", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC30", reference:"ytnef-1.9.3-1.fc30", epoch:"1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "1:ytnef"); }
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3288-1.NASL description It was discovered that libytnef incorrectly handled malformed TNEF streams. If a user were tricked into opening a specially crafted TNEF attachment, an attacker could cause a denial of service or possibly execute arbitrary code. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 100219 published 2017-05-16 reporter Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100219 title Ubuntu 14.04 LTS : libytnef vulnerabilities (USN-3288-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Ubuntu Security Notice USN-3288-1. The text # itself is copyright (C) Canonical, Inc. See # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered # trademark of Canonical, Inc. # include("compat.inc"); if (description) { script_id(100219); script_version("3.7"); script_cvs_date("Date: 2019/09/18 12:31:47"); script_cve_id("CVE-2017-6298", "CVE-2017-6299", "CVE-2017-6300", "CVE-2017-6301", "CVE-2017-6302", "CVE-2017-6303", "CVE-2017-6304", "CVE-2017-6305", "CVE-2017-6306", "CVE-2017-6800", "CVE-2017-6801", "CVE-2017-6802"); script_xref(name:"USN", value:"3288-1"); script_name(english:"Ubuntu 14.04 LTS : libytnef vulnerabilities (USN-3288-1)"); script_summary(english:"Checks dpkg output for updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Ubuntu host is missing a security-related patch." ); script_set_attribute( attribute:"description", value: "It was discovered that libytnef incorrectly handled malformed TNEF streams. If a user were tricked into opening a specially crafted TNEF attachment, an attacker could cause a denial of service or possibly execute arbitrary code. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://usn.ubuntu.com/3288-1/" ); script_set_attribute( attribute:"solution", value:"Update the affected libytnef0 package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:N/UI:R/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:canonical:ubuntu_linux:libytnef0"); script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/24"); script_set_attribute(attribute:"patch_publication_date", value:"2017/05/15"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/16"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Ubuntu Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("ubuntu.inc"); include("misc_func.inc"); if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/Ubuntu/release"); if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu"); release = chomp(release); if (! preg(pattern:"^(14\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04", "Ubuntu " + release); if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu); flag = 0; if (ubuntu_check(osver:"14.04", pkgname:"libytnef0", pkgver:"1.5-6ubuntu0.1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : ubuntu_report_get() ); exit(0); } else { tested = ubuntu_pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libytnef0"); }
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-878.NASL description CVE-2017-6298 NULL pointer Deref / calloc return value not checked CVE-2017-6299 Infinite Loop / DoS in the TNEFFillMapi function in lib/ytnef.c CVE-2017-6300 Buffer Overflow in version field in lib/tnef-types.h CVE-2017-6301 Out of Bounds Reads CVE-2017-6302 Integer Overflow CVE-2017-6303 Invalid Write and Integer Overflow CVE-2017-6304 Out of Bounds read CVE-2017-6305 Out of Bounds read and write CVE-2017-6801 Out-of-bounds access with fields of Size 0 in TNEFParse() in libytnef CVE-2017-6802 Heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef For Debian 7 last seen 2020-03-17 modified 2017-03-30 plugin id 99044 published 2017-03-30 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99044 title Debian DLA-878-1 : libytnef security update code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DLA-878-1. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(99044); script_version("3.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2017-6298", "CVE-2017-6299", "CVE-2017-6300", "CVE-2017-6301", "CVE-2017-6302", "CVE-2017-6303", "CVE-2017-6304", "CVE-2017-6305", "CVE-2017-6801", "CVE-2017-6802"); script_name(english:"Debian DLA-878-1 : libytnef security update"); script_summary(english:"Checks dpkg output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security update." ); script_set_attribute( attribute:"description", value: "CVE-2017-6298 NULL pointer Deref / calloc return value not checked CVE-2017-6299 Infinite Loop / DoS in the TNEFFillMapi function in lib/ytnef.c CVE-2017-6300 Buffer Overflow in version field in lib/tnef-types.h CVE-2017-6301 Out of Bounds Reads CVE-2017-6302 Integer Overflow CVE-2017-6303 Invalid Write and Integer Overflow CVE-2017-6304 Out of Bounds read CVE-2017-6305 Out of Bounds read and write CVE-2017-6801 Out-of-bounds access with fields of Size 0 in TNEFParse() in libytnef CVE-2017-6802 Heap-based buffer over-read on incoming Compressed RTF Streams, related to DecompressRTF() in libytnef For Debian 7 'Wheezy', these problems have been fixed in version 1.5-4+deb7u1. We recommend that you upgrade your libytnef packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2017/03/msg00036.html" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/wheezy/libytnef" ); script_set_attribute( attribute:"solution", value:"Upgrade the affected libytnef0, and libytnef0-dev packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:N/UI:R/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:debian:debian_linux:libytnef0"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libytnef0-dev"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0"); script_set_attribute(attribute:"patch_publication_date", value:"2017/03/28"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/30"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"7.0", prefix:"libytnef0", reference:"1.5-4+deb7u1")) flag++; if (deb_check(release:"7.0", prefix:"libytnef0-dev", reference:"1.5-4+deb7u1")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3846.NASL description Several issues were discovered in libytnef, a library used to decode application/ms-tnef e-mail attachments. Multiple heap overflows, out-of-bound writes and reads, NULL pointer dereferences and infinite loops could be exploited by tricking a user into opening a maliciously crafted winmail.dat file. last seen 2020-06-01 modified 2020-06-02 plugin id 100070 published 2017-05-10 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100070 title Debian DSA-3846-1 : libytnef - security update code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-3846. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(100070); script_version("3.6"); script_cvs_date("Date: 2018/11/10 11:49:38"); script_cve_id("CVE-2017-6298", "CVE-2017-6299", "CVE-2017-6300", "CVE-2017-6301", "CVE-2017-6302", "CVE-2017-6303", "CVE-2017-6304", "CVE-2017-6305", "CVE-2017-6306", "CVE-2017-6800", "CVE-2017-6801", "CVE-2017-6802"); script_xref(name:"DSA", value:"3846"); script_name(english:"Debian DSA-3846-1 : libytnef - security update"); script_summary(english:"Checks dpkg output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Several issues were discovered in libytnef, a library used to decode application/ms-tnef e-mail attachments. Multiple heap overflows, out-of-bound writes and reads, NULL pointer dereferences and infinite loops could be exploited by tricking a user into opening a maliciously crafted winmail.dat file." ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/jessie/libytnef" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2017/dsa-3846" ); script_set_attribute( attribute:"solution", value: "Upgrade the libytnef packages. For the stable distribution (jessie), these problems have been fixed in version 1.5-6+deb8u1. For the upcoming stable (stretch) and unstable (sid) distributions, these problems have been fixed in version 1.9.2-1." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:N/UI:R/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:debian:debian_linux:libytnef"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0"); script_set_attribute(attribute:"patch_publication_date", value:"2017/05/09"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/10"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"8.0", prefix:"libytnef0", reference:"1.5-6+deb8u1")) flag++; if (deb_check(release:"8.0", prefix:"libytnef0-dev", reference:"1.5-6+deb8u1")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
References
- https://www.x41-dsec.de/lab/advisories/x41-2017-002-ytnef/
- https://github.com/Yeraze/ytnef/pull/27
- http://www.openwall.com/lists/oss-security/2017/02/15/4
- http://www.securityfocus.com/bid/96423
- http://www.debian.org/security/2017/dsa-3846
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/