Vulnerabilities > CVE-2017-9050 - Out-of-bounds Read vulnerability in Xmlsoft Libxml2 2.9.4
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Nessus
NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2211.NASL description According to the versions of the libxml2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the last seen 2020-05-08 modified 2019-11-08 plugin id 130673 published 2019-11-08 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/130673 title EulerOS 2.0 SP5 : libxml2 (EulerOS-SA-2019-2211) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(130673); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07"); script_cve_id( "CVE-2015-8806", "CVE-2017-5969", "CVE-2017-8872", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050", "CVE-2018-14567", "CVE-2018-9251" ); script_name(english:"EulerOS 2.0 SP5 : libxml2 (EulerOS-SA-2019-2211)"); script_summary(english:"Checks the rpm output for the updated packages."); script_set_attribute(attribute:"synopsis", value: "The remote EulerOS host is missing multiple security updates."); script_set_attribute(attribute:"description", value: "According to the versions of the libxml2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the '<!DOCTYPE html' substring in a crafted HTML document.(CVE-2015-8806) - libxml2 2.9.4, when used in recover mode, allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted XML document. NOTE: The maintainer states 'I would disagree of a CVE with the Recover parsing option which should only be used for manual recovery at least for XML parser.'(CVE-2017-5969) - The htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or information disclosure.(CVE-2017-8872) - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.(CVE-2017-9048) - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.(CVE-2017-9049) - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.(CVE-2017-9050) - The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.(CVE-2018-9251) - libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251.(CVE-2018-14567) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues."); # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2211 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?20307672"); script_set_attribute(attribute:"solution", value: "Update the affected libxml2 packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/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:"patch_publication_date", value:"2019/10/29"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/08"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libxml2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libxml2-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libxml2-python"); script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Huawei Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp"); script_exclude_keys("Host/EulerOS/uvp_version"); 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/EulerOS/release"); if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS"); if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0"); sp = get_kb_item("Host/EulerOS/sp"); if (isnull(sp) || sp !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5"); uvp = get_kb_item("Host/EulerOS/uvp_version"); if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "EulerOS UVP " + uvp); if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu); flag = 0; pkgs = ["libxml2-2.9.1-6.3.h20.eulerosv2r7", "libxml2-devel-2.9.1-6.3.h20.eulerosv2r7", "libxml2-python-2.9.1-6.3.h20.eulerosv2r7"]; foreach (pkg in pkgs) if (rpm_check(release:"EulerOS-2.0", sp:"5", reference:pkg)) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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, "libxml2"); }NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0024_LIBXML2.NASL description An update of the libxml2 package has been released. last seen 2020-03-17 modified 2019-02-07 plugin id 121711 published 2019-02-07 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/121711 title Photon OS 1.0: Libxml2 PHSA-2017-0024 code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from VMware Security Advisory PHSA-2017-0024. The text # itself is copyright (C) VMware, Inc. include('compat.inc'); if (description) { script_id(121711); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2019/02/07"); script_cve_id( "CVE-2017-9047", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050" ); script_name(english:"Photon OS 1.0: Libxml2 PHSA-2017-0024"); script_summary(english:"Checks the rpm output for the updated packages."); script_set_attribute(attribute:"synopsis", value: "The remote PhotonOS host is missing multiple security updates."); script_set_attribute(attribute:"description", value: "An update of the libxml2 package has been released."); script_set_attribute(attribute:"see_also", value:"https://github.com/vmware/photon/wiki/Security-Updates-54.md"); script_set_attribute(attribute:"solution", value: "Update the affected Linux packages."); 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:"cvss_score_source", value:"CVE-2017-10685"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/13"); script_set_attribute(attribute:"patch_publication_date", value:"2017/07/13"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/07"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:libxml2"); script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:photonos:1.0"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"PhotonOS Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/PhotonOS/release", "Host/PhotonOS/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/PhotonOS/release"); if (isnull(release) || release !~ "^VMware Photon") audit(AUDIT_OS_NOT, "PhotonOS"); if (release !~ "^VMware Photon (?:Linux|OS) 1\.0(\D|$)") audit(AUDIT_OS_NOT, "PhotonOS 1.0"); if (!get_kb_item("Host/PhotonOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "PhotonOS", cpu); flag = 0; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-debuginfo-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-debuginfo-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-debuginfo-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-debuginfo-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-devel-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-devel-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-devel-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-devel-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-python-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-python-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-python-2.9.4-6.ph1")) flag++; if (rpm_check(release:"PhotonOS-1.0", reference:"libxml2-python-2.9.4-6.ph1")) 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, "libxml2"); }NASL family MacOS X Local Security Checks NASL id MACOSX_SECUPD2017-004.NASL description The remote host is running Mac OS X 10.11.6 or Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities affecting the following components : - 802.1X - apache - AppleScript - ATS - Audio - CFString - CoreText - curl - Dictionary Widget - file - Fonts - fsck_msdos - HFS - Heimdal - HelpViewer - ImageIO - Kernel - libarchive - Open Scripting Architecture - PCRE - Postfix - Quick Look - QuickTime - Remote Management - Sandbox - StreamingZip - tcpdump - Wi-Fi last seen 2020-06-01 modified 2020-06-02 plugin id 104379 published 2017-11-03 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104379 title macOS and Mac OS X Multiple Vulnerabilities (Security Update 2017-001 and 2017-004) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(104379); script_version("1.10"); script_cvs_date("Date: 2019/06/19 15:17:43"); script_cve_id( "CVE-2016-0736", "CVE-2016-2161", "CVE-2016-4736", "CVE-2016-5387", "CVE-2016-8740", "CVE-2016-8743", "CVE-2017-1000100", "CVE-2017-1000101", "CVE-2017-10140", "CVE-2017-11103", "CVE-2017-11108", "CVE-2017-11541", "CVE-2017-11542", "CVE-2017-11543", "CVE-2017-12893", "CVE-2017-12894", "CVE-2017-12895", "CVE-2017-12896", "CVE-2017-12897", "CVE-2017-12898", "CVE-2017-12899", "CVE-2017-12900", "CVE-2017-12901", "CVE-2017-12902", "CVE-2017-12985", "CVE-2017-12986", "CVE-2017-12987", "CVE-2017-12988", "CVE-2017-12989", "CVE-2017-12990", "CVE-2017-12991", "CVE-2017-12992", "CVE-2017-12993", "CVE-2017-12994", "CVE-2017-12995", "CVE-2017-12996", "CVE-2017-12997", "CVE-2017-12998", "CVE-2017-12999", "CVE-2017-13000", "CVE-2017-13001", "CVE-2017-13002", "CVE-2017-13003", "CVE-2017-13004", "CVE-2017-13005", "CVE-2017-13006", "CVE-2017-13007", "CVE-2017-13008", "CVE-2017-13009", "CVE-2017-13010", "CVE-2017-13011", "CVE-2017-13012", "CVE-2017-13013", "CVE-2017-13014", "CVE-2017-13015", "CVE-2017-13016", "CVE-2017-13017", "CVE-2017-13018", "CVE-2017-13019", "CVE-2017-13020", "CVE-2017-13021", "CVE-2017-13022", "CVE-2017-13023", "CVE-2017-13024", "CVE-2017-13025", "CVE-2017-13026", "CVE-2017-13027", "CVE-2017-13028", "CVE-2017-13029", "CVE-2017-13030", "CVE-2017-13031", "CVE-2017-13032", "CVE-2017-13033", "CVE-2017-13034", "CVE-2017-13035", "CVE-2017-13036", "CVE-2017-13037", "CVE-2017-13038", "CVE-2017-13039", "CVE-2017-13040", "CVE-2017-13041", "CVE-2017-13042", "CVE-2017-13043", "CVE-2017-13044", "CVE-2017-13045", "CVE-2017-13046", "CVE-2017-13047", "CVE-2017-13048", "CVE-2017-13049", "CVE-2017-13050", "CVE-2017-13051", "CVE-2017-13052", "CVE-2017-13053", "CVE-2017-13054", "CVE-2017-13055", "CVE-2017-13077", "CVE-2017-13078", "CVE-2017-13080", "CVE-2017-13687", "CVE-2017-13688", "CVE-2017-13689", "CVE-2017-13690", "CVE-2017-13725", "CVE-2017-13782", "CVE-2017-13799", "CVE-2017-13801", "CVE-2017-13804", "CVE-2017-13807", "CVE-2017-13808", "CVE-2017-13809", "CVE-2017-13810", "CVE-2017-13811", "CVE-2017-13812", "CVE-2017-13813", "CVE-2017-13814", "CVE-2017-13815", "CVE-2017-13817", "CVE-2017-13818", "CVE-2017-13819", "CVE-2017-13820", "CVE-2017-13821", "CVE-2017-13822", "CVE-2017-13823", "CVE-2017-13824", "CVE-2017-13825", "CVE-2017-13828", "CVE-2017-13829", "CVE-2017-13830", "CVE-2017-13831", "CVE-2017-13833", "CVE-2017-13834", "CVE-2017-13836", "CVE-2017-13838", "CVE-2017-13840", "CVE-2017-13841", "CVE-2017-13842", "CVE-2017-13843", "CVE-2017-13846", "CVE-2017-13906", "CVE-2017-13908", "CVE-2017-3167", "CVE-2017-3169", "CVE-2017-5130", "CVE-2017-5969", "CVE-2017-7132", "CVE-2017-7150", "CVE-2017-7170", "CVE-2017-7376", "CVE-2017-7659", "CVE-2017-7668", "CVE-2017-7679", "CVE-2017-9049", "CVE-2017-9050", "CVE-2017-9788", "CVE-2017-9789" ); script_bugtraq_id( 100249, 100286, 100913, 100914, 101177, 101274, 101482, 102100, 91816, 93055, 94650, 95076, 95077, 95078, 96188, 98568, 98601, 98877, 99132, 99134, 99135, 99137, 99170, 99551, 99568, 99569, 99938, 99939, 99940, 99941 ); script_xref(name:"APPLE-SA", value:"APPLE-SA-2017-10-31-2"); script_xref(name:"IAVA", value:"2017-A-0310"); script_name(english:"macOS and Mac OS X Multiple Vulnerabilities (Security Update 2017-001 and 2017-004)"); script_summary(english:"Checks for the presence of Security Update 2017-004."); script_set_attribute(attribute:"synopsis", value: "The remote host is missing a macOS or Mac OS X security update that fixes multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The remote host is running Mac OS X 10.11.6 or Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities affecting the following components : - 802.1X - apache - AppleScript - ATS - Audio - CFString - CoreText - curl - Dictionary Widget - file - Fonts - fsck_msdos - HFS - Heimdal - HelpViewer - ImageIO - Kernel - libarchive - Open Scripting Architecture - PCRE - Postfix - Quick Look - QuickTime - Remote Management - Sandbox - StreamingZip - tcpdump - Wi-Fi"); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT208221"); # https://lists.apple.com/archives/security-announce/2017/Oct/msg00001.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3881783e"); script_set_attribute(attribute:"solution", value: "Install Security Update 2017-004 or later for 10.11.x or Security Update 2017-001 or later for 10.12.x."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7376"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/07/18"); script_set_attribute(attribute:"patch_publication_date", value:"2017/10/31"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/03"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos"); script_set_attribute(attribute:"stig_severity", value:"II"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"MacOS X Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); # Compare 2 patch numbers to determine if patch requirements are satisfied. # Return true if this patch or a later patch is applied # Return false otherwise function check_patch(year, number) { local_var p_split = split(patch, sep:"-"); local_var p_year = int( p_split[0]); local_var p_num = int( p_split[1]); if (year > p_year) return TRUE; else if (year < p_year) return FALSE; else if (number >= p_num) return TRUE; else return FALSE; } get_kb_item_or_exit("Host/local_checks_enabled"); os = get_kb_item_or_exit("Host/MacOSX/Version"); if (!preg(pattern:"Mac OS X 10\.(11\.6|12\.6)([^0-9]|$)", string:os)) audit(AUDIT_OS_NOT, "Mac OS X 10.11.6 or Mac OS X 10.12.6"); if ("10.11.6" >< os) patch = "2017-004"; else patch = "2017-001"; packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1); sec_boms_report = pgrep( pattern:"^com\.apple\.pkg\.update\.(security\.|os\.SecUpd).*bom$", string:packages ); sec_boms = split(sec_boms_report, sep:'\n'); foreach package (sec_boms) { # Grab patch year and number match = pregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package); if (empty_or_null(match[1]) || empty_or_null(match[2])) continue; patch_found = check_patch(year:int(match[1]), number:int(match[2])); if (patch_found) exit(0, "The host has Security Update " + patch + " or later installed and is therefore not affected."); } report = '\n Missing security update : ' + patch; report += '\n Installed security BOMs : '; if (sec_boms_report) report += str_replace(find:'\n', replace:'\n ', string:sec_boms_report); else report += 'n/a'; report += '\n'; security_report_v4(port:0, severity:SECURITY_HOLE, extra:report, xss:TRUE);NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1454-1.NASL description This update for libxml2 fixes the following issues : - CVE-2017-9047, CVE-2017-9048: The function xmlSnprintfElementContent in valid.c was vulnerable to a stack-based buffer overflow (bsc#1039063, bsc#1039064) - CVE-2017-9049: The function xmlDictComputeFastKey in dict.c was vulnerable to a heap-based buffer over-read. (bsc#1039066) - CVE-2017-9050: The function xmlDictAddString was vulnerable to a heap-based buffer over-read (bsc#1039661) - CVE-2016-1839: heap-based buffer overflow (xmlDictAddString func) (bnc#1039069) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 100544 published 2017-05-31 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100544 title SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:1454-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2017:1454-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(100544); script_version("3.7"); script_cvs_date("Date: 2019/09/11 11:22:15"); script_cve_id("CVE-2016-1839", "CVE-2017-9047", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050"); script_name(english:"SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:1454-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for libxml2 fixes the following issues : - CVE-2017-9047, CVE-2017-9048: The function xmlSnprintfElementContent in valid.c was vulnerable to a stack-based buffer overflow (bsc#1039063, bsc#1039064) - CVE-2017-9049: The function xmlDictComputeFastKey in dict.c was vulnerable to a heap-based buffer over-read. (bsc#1039066) - CVE-2017-9050: The function xmlDictAddString was vulnerable to a heap-based buffer over-read (bsc#1039661) - CVE-2016-1839: heap-based buffer overflow (xmlDictAddString func) (bnc#1039069) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=1039063" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1039064" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1039066" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1039069" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1039661" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=981114" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2016-1839/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-9047/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-9048/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-9049/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-9050/" ); # https://www.suse.com/support/update/announcement/2017/suse-su-20171454-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?97009793" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-891=1 SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t patch SUSE-SLE-RPI-12-SP2-2017-891=1 SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-891=1 SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-891=1 OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2017-891=1 To bring your system up-to-date, use 'zypper patch'." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); 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_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-2-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libxml2-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-libxml2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-libxml2-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-libxml2-debugsource"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/20"); script_set_attribute(attribute:"patch_publication_date", value:"2017/05/30"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/31"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + sp); if (os_ver == "SLED12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-debugsource-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-debuginfo-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"python-libxml2-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debuginfo-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debugsource-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-32bit-2.9.4-36.1")) flag++; if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-32bit-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-32bit-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-2-debuginfo-32bit-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-debugsource-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libxml2-tools-debuginfo-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"python-libxml2-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debuginfo-2.9.4-36.1")) flag++; if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"python-libxml2-debugsource-2.9.4-36.1")) 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, "libxml2"); }NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0024.NASL description An update of [ncurses,openldap,libxml2,ruby] packages for PhotonOS has been released. last seen 2019-02-21 modified 2019-02-07 plugin id 111873 published 2018-08-17 reporter Tenable source https://www.tenable.com/plugins/index.php?view=single&id=111873 title Photon OS 1.0: Libxml2 / Ncurses / Openldap / Ruby PHSA-2017-0024 (deprecated) code # # (C) Tenable Network Security, Inc. # # @DEPRECATED@ # # Disabled on 2/7/2019 # # The descriptive text and package checks in this plugin were # extracted from VMware Security Advisory PHSA-2017-0024. The text # itself is copyright (C) VMware, Inc. include("compat.inc"); if (description) { script_id(111873); script_version("1.2"); script_cvs_date("Date: 2019/02/07 18:59:50"); script_cve_id( "CVE-2017-6181", "CVE-2017-9047", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050", "CVE-2017-9287", "CVE-2017-10684", "CVE-2017-10685" ); script_name(english:"Photon OS 1.0: Libxml2 / Ncurses / Openldap / Ruby PHSA-2017-0024 (deprecated)"); script_summary(english:"Checks the rpm output for the updated packages."); script_set_attribute(attribute:"synopsis", value: "This plugin has been deprecated."); script_set_attribute(attribute:"description", value: "An update of [ncurses,openldap,libxml2,ruby] packages for PhotonOS has been released."); # https://github.com/vmware/photon/wiki/Security-Updates-54 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e51e1258"); script_set_attribute(attribute:"solution", value:"n/a."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); 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_attribute(attribute:"cvss_score_source", value:"CVE-2017-10684"); script_set_attribute(attribute:"patch_publication_date", value:"2017/07/13"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/17"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:libxml2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:ncurses"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:openldap"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:vmware:photonos:ruby"); script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:photonos:1.0"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"PhotonOS Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/PhotonOS/release", "Host/PhotonOS/rpm-list"); exit(0); } exit(0, "This plugin has been deprecated."); 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/PhotonOS/release"); if (isnull(release) || release !~ "^VMware Photon") audit(AUDIT_OS_NOT, "PhotonOS"); if (release !~ "^VMware Photon (?:Linux|OS) 1\.0(\D|$)") audit(AUDIT_OS_NOT, "PhotonOS 1.0"); if (!get_kb_item("Host/PhotonOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "PhotonOS", cpu); flag = 0; pkgs = [ "libxml2-2.9.4-6.ph1", "libxml2-debuginfo-2.9.4-6.ph1", "libxml2-devel-2.9.4-6.ph1", "libxml2-python-2.9.4-6.ph1", "ncurses-6.0-5.ph1", "ncurses-compat-6.0-5.ph1", "ncurses-debuginfo-6.0-5.ph1", "ncurses-devel-6.0-5.ph1", "openldap-2.4.43-3.ph1", "openldap-debuginfo-2.4.43-3.ph1", "ruby-2.4.0-4.ph1", "ruby-debuginfo-2.4.0-4.ph1" ]; foreach (pkg in pkgs) if (rpm_check(release:"PhotonOS-1.0", reference:pkg)) 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, "libxml2 / ncurses / openldap / ruby"); }NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_76E59F554F7A4887BCB011604004163A.NASL description libxml2 developers report : The htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or information disclosure. A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer last seen 2020-06-01 modified 2020-06-02 plugin id 105216 published 2017-12-14 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/105216 title FreeBSD : libxml2 -- Multiple Issues (76e59f55-4f7a-4887-bcb0-11604004163a) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from the FreeBSD VuXML database : # # Copyright 2003-2018 Jacques Vidrine and contributors # # Redistribution and use in source (VuXML) and 'compiled' forms (SGML, # HTML, PDF, PostScript, RTF and so forth) with or without modification, # are permitted provided that the following conditions are met: # 1. Redistributions of source code (VuXML) must retain the above # copyright notice, this list of conditions and the following # disclaimer as the first lines of this file unmodified. # 2. Redistributions in compiled form (transformed to other DTDs, # published online in any format, converted to PDF, PostScript, # RTF and other formats) must reproduce the above copyright # notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION, # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # include("compat.inc"); if (description) { script_id(105216); script_version("3.4"); script_cvs_date("Date: 2018/11/21 10:46:31"); script_cve_id("CVE-2017-8872", "CVE-2017-9047", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050"); script_name(english:"FreeBSD : libxml2 -- Multiple Issues (76e59f55-4f7a-4887-bcb0-11604004163a)"); script_summary(english:"Checks for updated package in pkg_info output"); script_set_attribute( attribute:"synopsis", value:"The remote FreeBSD host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "libxml2 developers report : The htmlParseTryOrFinish function in HTMLparser.c in libxml2 2.9.4 allows attackers to cause a denial of service (buffer over-read) or information disclosure. A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. The variable len is assigned strlen(buf). If the content->type is XML_ELEMENT_CONTENT_ELEMENT, then (i) the content->prefix is appended to buf (if it actually fits) whereupon (ii) content->name is written to the buffer. However, the check for whether the content->name actually fits also uses 'len' rather than the updated buffer length strlen(buf). This allows us to write about 'size' many bytes beyond the allocated memory. This vulnerability causes programs that use libxml2, such as PHP, to crash. libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash. libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398. libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.gnome.org/show_bug.cgi?id=775200" ); # http://www.openwall.com/lists/oss-security/2017/05/15/1 script_set_attribute( attribute:"see_also", value:"https://www.openwall.com/lists/oss-security/2017/05/15/1" ); # http://www.securityfocus.com/bid/98599 script_set_attribute( attribute:"see_also", value:"https://www.securityfocus.com/bid/98599" ); # http://www.openwall.com/lists/oss-security/2017/05/15/1 script_set_attribute( attribute:"see_also", value:"https://www.openwall.com/lists/oss-security/2017/05/15/1" ); # http://www.securityfocus.com/bid/98556 script_set_attribute( attribute:"see_also", value:"https://www.securityfocus.com/bid/98556" ); # http://www.openwall.com/lists/oss-security/2017/05/15/1 script_set_attribute( attribute:"see_also", value:"https://www.openwall.com/lists/oss-security/2017/05/15/1" ); # http://www.securityfocus.com/bid/98601 script_set_attribute( attribute:"see_also", value:"https://www.securityfocus.com/bid/98601" ); 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script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/14"); 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:"FreeBSD Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info"); exit(0); } include("audit.inc"); include("freebsd_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD"); if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (pkg_test(save_report:TRUE, pkg:"libxml2<=2.9.4")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-711.NASL description This update for libxml2 fixes the following security issues : - CVE-2017-9050: A heap-based buffer over-read in xmlDictAddString (bsc#1039069, bsc#1039661) - CVE-2017-9049: A heap-based buffer overflow in xmlDictComputeFastKey (bsc#1039066) - CVE-2017-9048: A stack overflow vulnerability in xmlSnprintfElementContent (bsc#1039063) - CVE-2017-9047: A stack overflow vulnerability in xmlSnprintfElementContent (bsc#1039064) This update was imported from the SUSE:SLE-12-SP2:Update update project. last seen 2020-06-05 modified 2017-06-20 plugin id 100884 published 2017-06-20 reporter This script is Copyright (C) 2017-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/100884 title openSUSE Security Update : libxml2 (openSUSE-2017-711) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2017-711. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(100884); script_version("3.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-9047", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050"); script_name(english:"openSUSE Security Update : libxml2 (openSUSE-2017-711)"); script_summary(english:"Check for the openSUSE-2017-711 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update for libxml2 fixes the following security issues : - CVE-2017-9050: A heap-based buffer over-read in xmlDictAddString (bsc#1039069, bsc#1039661) - CVE-2017-9049: A heap-based buffer overflow in xmlDictComputeFastKey (bsc#1039066) - CVE-2017-9048: A stack overflow vulnerability in xmlSnprintfElementContent (bsc#1039063) - CVE-2017-9047: A stack overflow vulnerability in xmlSnprintfElementContent (bsc#1039064) This update was imported from the SUSE:SLE-12-SP2:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1039063" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1039064" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1039066" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1039069" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1039661" ); script_set_attribute( attribute:"solution", value:"Update the affected libxml2 packages." ); 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:novell:opensuse:libxml2-2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-2-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-2-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-2-debuginfo-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-devel-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libxml2-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python-libxml2"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python-libxml2-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:python-libxml2-debugsource"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2"); script_set_attribute(attribute:"patch_publication_date", value:"2017/06/19"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/20"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); 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/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.2", reference:"libxml2-2-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"libxml2-2-debuginfo-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"libxml2-debugsource-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"libxml2-devel-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"libxml2-tools-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"libxml2-tools-debuginfo-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"python-libxml2-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"python-libxml2-debuginfo-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"python-libxml2-debugsource-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libxml2-2-32bit-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libxml2-2-debuginfo-32bit-2.9.4-5.6.1") ) flag++; if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libxml2-devel-32bit-2.9.4-5.6.1") ) 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, "libxml2-2 / libxml2-2-32bit / libxml2-2-debuginfo / etc"); }NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3424-1.NASL description It was discovered that a type confusion error existed in libxml2. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-0663) It was discovered that libxml2 did not properly validate parsed entity references. An attacker could use this to specially construct XML data that could expose sensitive information. (CVE-2017-7375) It was discovered that a buffer overflow existed in libxml2 when handling HTTP redirects. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-7376) Marcel Bohme and Van-Thuan Pham discovered a buffer overflow in libxml2 when handling elements. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-9047) Marcel Bohme and Van-Thuan Pham discovered a buffer overread in libxml2 when handling elements. An attacker could use this to specially construct XML data that could cause a denial of service. (CVE-2017-9048) Marcel Bohme and Van-Thuan Pham discovered multiple buffer overreads in libxml2 when handling parameter-entity references. An attacker could use these to specially construct XML data that could cause a denial of service. (CVE-2017-9049, CVE-2017-9050). 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 103327 published 2017-09-19 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/103327 title Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : libxml2 vulnerabilities (USN-3424-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1557-1.NASL description This update for libxml2 fixes the following issues: Security issues fixed : - CVE-2017-9050: heap-based buffer overflow (xmlDictAddString func) [bsc#1039069, bsc#1039661] - CVE-2017-9049: heap-based buffer overflow (xmlDictComputeFastKey func) [bsc#1039066] - CVE-2017-9048: stack overflow vulnerability (xmlSnprintfElementContent func) [bsc#1039063] - CVE-2017-9047: stack overflow vulnerability (xmlSnprintfElementContent func) [bsc#1039064] A clarification for the previously released update: For CVE-2016-9318 we decided not to ship a fix since it can break existing setups. Please take appropriate actions if you parse untrusted XML files and use the new -noxxe flag if possible (bnc#1010675, bnc#1013930). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 100780 published 2017-06-14 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100780 title SUSE SLES11 Security Update : libxml2 (SUSE-SU-2017:1557-1) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201711-01.NASL description The remote host is affected by the vulnerability described in GLSA-201711-01 (libxml2: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in libxml2. Please review the CVE identifiers referenced below for details. Impact : A remote attacker, by enticing a user to process a specially crafted XML document, could remotely execute arbitrary code, conduct XML External Entity (XXE) attacks, or cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 104492 published 2017-11-10 reporter This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/104492 title GLSA-201711-01 : libxml2: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1538-1.NASL description This update for libxml2 fixes the following security issues : - CVE-2017-9050: A heap-based buffer over-read in xmlDictAddString (bsc#1039069, bsc#1039661) - CVE-2017-9049: A heap-based buffer overflow in xmlDictComputeFastKey (bsc#1039066) - CVE-2017-9048: A stack overflow vulnerability in xmlSnprintfElementContent (bsc#1039063) - CVE-2017-9047: A stack overflow vulnerability in xmlSnprintfElementContent (bsc#1039064) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 100754 published 2017-06-13 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100754 title SUSE SLED12 / SLES12 Security Update : libxml2 (SUSE-SU-2017:1538-1) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1008.NASL description CVE-2017-7375 Missing validation for external entities in xmlParsePEReference CVE-2017-9047 CVE-2017-9048 A buffer overflow was discovered in libxml2 20904-GITv2.9.4-16-g0741801. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer last seen 2020-03-17 modified 2017-07-03 plugin id 101174 published 2017-07-03 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/101174 title Debian DLA-1008-1 : libxml2 security update NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1587-1.NASL description This update for libxml2 fixes the following issues : - CVE-2017-9050: heap-based buffer overflow (xmlDictAddString func) [bsc#1039069, bsc#1039661] - CVE-2017-9049: heap-based buffer overflow (xmlDictComputeFastKey func) [bsc#1039066] - CVE-2017-9048: stack overflow vulnerability (xmlSnprintfElementContent func) [bsc#1039063] - CVE-2017-9047: stack overflow vulnerability (xmlSnprintfElementContent func) [bsc#1039064] Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 100867 published 2017-06-19 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100867 title SUSE SLES12 Security Update : libxml2 (SUSE-SU-2017:1587-1) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3952.NASL description Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause a denial-of-service against the application, information leaks, or potentially, the execution of arbitrary code with the privileges of the user running the application. last seen 2020-06-01 modified 2020-06-02 plugin id 102685 published 2017-08-23 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/102685 title Debian DSA-3952-1 : libxml2 - security update NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1268.NASL description According to the versions of the libxml2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.(CVE-2017-9050) - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.(CVE-2017-9049) - libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer last seen 2020-03-26 modified 2020-03-20 plugin id 134734 published 2020-03-20 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134734 title EulerOS Virtualization 3.0.2.2 : libxml2 (EulerOS-SA-2020-1268) NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-663.NASL description This update for libxml2 fixes the following issues : - CVE-2017-9047, CVE-2017-9048: The function xmlSnprintfElementContent in valid.c was vulnerable to a stack-based buffer overflow (bsc#1039063, bsc#1039064) - CVE-2017-9049: The function xmlDictComputeFastKey in dict.c was vulnerable to a heap-based buffer over-read. (bsc#1039066) - CVE-2017-9050: The function xmlDictAddString was vulnerable to a heap-based buffer over-read (bsc#1039661) - CVE-2016-1839: heap-based buffer overflow (xmlDictAddString func) (bnc#1039069) This update was imported from the SUSE:SLE-12-SP2:Update update project. last seen 2020-06-05 modified 2017-06-09 plugin id 100708 published 2017-06-09 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/100708 title openSUSE Security Update : libxml2 (openSUSE-2017-663)
References
- http://www.openwall.com/lists/oss-security/2017/05/15/1
- http://www.securityfocus.com/bid/98568
- http://www.debian.org/security/2017/dsa-3952
- https://security.gentoo.org/glsa/201711-01
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E