Vulnerabilities > CVE-2016-4472 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2017-266-02.NASL description New python packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix a security issue. last seen 2020-06-01 modified 2020-06-02 plugin id 103424 published 2017-09-25 reporter This script is Copyright (C) 2017 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/103424 title Slackware 14.0 / 14.1 / 14.2 / current : python (SSA:2017-266-02) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Slackware Security Advisory 2017-266-02. The text # itself is copyright (C) Slackware Linux, Inc. # include("compat.inc"); if (description) { script_id(103424); script_version("$Revision: 3.1 $"); script_cvs_date("$Date: 2017/09/25 13:28:56 $"); script_cve_id("CVE-2016-0718", "CVE-2016-4472", "CVE-2016-9063", "CVE-2017-9233"); script_xref(name:"SSA", value:"2017-266-02"); script_name(english:"Slackware 14.0 / 14.1 / 14.2 / current : python (SSA:2017-266-02)"); script_summary(english:"Checks for updated package in /var/log/packages"); script_set_attribute( attribute:"synopsis", value:"The remote Slackware host is missing a security update." ); script_set_attribute( attribute:"description", value: "New python packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix a security issue." ); # http://www.slackware.com/security/viewer.php?l=slackware-security&y=2017&m=slackware-security.436421 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?9e0c1fdd" ); script_set_attribute( attribute:"solution", value:"Update the affected python package." ); 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:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:python"); script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux"); script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.0"); script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.1"); script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.2"); script_set_attribute(attribute:"patch_publication_date", value:"2017/09/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/25"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017 Tenable Network Security, Inc."); script_family(english:"Slackware Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Slackware/release", "Host/Slackware/packages"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("slackware.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Slackware/release")) audit(AUDIT_OS_NOT, "Slackware"); if (!get_kb_item("Host/Slackware/packages")) 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, "Slackware", cpu); flag = 0; if (slackware_check(osver:"14.0", pkgname:"python", pkgver:"2.7.14", pkgarch:"i486", pkgnum:"1_slack14.0")) flag++; if (slackware_check(osver:"14.0", arch:"x86_64", pkgname:"python", pkgver:"2.7.14", pkgarch:"x86_64", pkgnum:"1_slack14.0")) flag++; if (slackware_check(osver:"14.1", pkgname:"python", pkgver:"2.7.14", pkgarch:"i486", pkgnum:"1_slack14.1")) flag++; if (slackware_check(osver:"14.1", arch:"x86_64", pkgname:"python", pkgver:"2.7.14", pkgarch:"x86_64", pkgnum:"1_slack14.1")) flag++; if (slackware_check(osver:"14.2", pkgname:"python", pkgver:"2.7.14", pkgarch:"i586", pkgnum:"1_slack14.2")) flag++; if (slackware_check(osver:"14.2", arch:"x86_64", pkgname:"python", pkgver:"2.7.14", pkgarch:"x86_64", pkgnum:"1_slack14.2")) flag++; if (slackware_check(osver:"current", pkgname:"python", pkgver:"2.7.14", pkgarch:"i586", pkgnum:"1")) flag++; if (slackware_check(osver:"current", arch:"x86_64", pkgname:"python", pkgver:"2.7.14", pkgarch:"x86_64", pkgnum:"1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:slackware_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3013-1.NASL description It was discovered that the Expat code in XML-RPC for C and C++ unexpectedly called srand in certain circumstances. This could reduce the security of calling applications. (CVE-2012-6702) It was discovered that the Expat code in XML-RPC for C and C++ incorrectly handled seeding the random number generator. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2016-5300) Gustavo Grieco discovered that the Expat code in XML-RPC for C and C++ incorrectly handled malformed XML data. If a user or application linked against XML-RPC for C and C++ were tricked into opening a crafted XML file, an attacker could cause a denial of service, or possibly execute arbitrary code. (CVE-2016-0718) It was discovered that the Expat code in XML-RPC for C and C++ incorrectly handled malformed XML data. If a user or application linked against XML-RPC for C and C++ were tricked into opening a crafted XML file, an attacker could cause a denial of service, or possibly execute arbitrary code. (CVE-2015-1283, CVE-2016-4472). 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 91729 published 2016-06-21 reporter Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91729 title Ubuntu 12.04 LTS : xmlrpc-c vulnerabilities (USN-3013-1) NASL family Fedora Local Security Checks NASL id FEDORA_2016-0FD6CA526A.NASL description Security fixes for CVE-2016-4472, CVE-2016-5300, CVE-2016-0718 and CVE-2012-6702. 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 2020-06-05 modified 2016-07-15 plugin id 92229 published 2016-07-15 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92229 title Fedora 22 : expat (2016-0fd6ca526a) NASL family Fedora Local Security Checks NASL id FEDORA_2016-7C6E7A9265.NASL description Security fixes for CVE-2016-4472, CVE-2016-5300, CVE-2016-0718 and CVE-2012-6702. 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 2020-06-05 modified 2016-07-14 plugin id 92117 published 2016-07-14 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92117 title Fedora 24 : expat (2016-7c6e7a9265) NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2018-124-01.NASL description New python packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues. last seen 2020-06-01 modified 2020-06-02 plugin id 109583 published 2018-05-07 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109583 title Slackware 14.0 / 14.1 / 14.2 / current : python (SSA:2018-124-01) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_FF76F0E03F1111E6B3C814DAE9D210B8.NASL description Adam Maris reports : It was found that original patch for issues CVE-2015-1283 and CVE-2015-2716 used overflow checks that could be optimized out by some compilers applying certain optimization settings, which can cause the vulnerability to remain even after applying the patch. last seen 2020-06-01 modified 2020-06-02 plugin id 91913 published 2016-07-01 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91913 title FreeBSD : expat2 -- denial of service (ff76f0e0-3f11-11e6-b3c8-14dae9d210b8) NASL family Peer-To-Peer File Sharing NASL id ITUNES_12_6_BANNER.NASL description The version of Apple iTunes running on the remote host is prior to 12.6. It is, therefore, affected by multiple vulnerabilities : - Multiple vulnerabilities exist in the expat component, the most severe of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities to cause a denial of service condition or the execution of arbitrary code in the context of the current user. (CVE-2009-3270, CVE-2009-3560, CVE-2009-3720, CVE-2012-1147, CVE-2012-1148, CVE-2012-6702, CVE-2015-1283, CVE-2016-0718, CVE-2016-4472, CVE-2016-5300) - Multiple vulnerabilities exist in the SQLite component, the most severe of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted file, to cause a denial of service condition or the execution of arbitrary code in the context of the current user. (CVE-2013-7443, CVE-2015-3414, CVE-2015-3415, CVE-2015-3416, CVE-2015-3717, CVE-2015-6607, CVE-2016-6153) - An information disclosure vulnerability exists in the APNs server component due to client certificates being transmitted in cleartext. A man-in-the-middle attacker can exploit this to disclose sensitive information. (CVE-2017-2383) - A use-after-free error exists in the WebKit component due to improper handling of RenderBox objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-2463) - Multiple universal cross-site scripting (XSS) vulnerabilities exist in the WebKit component due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted web page, to execute arbitrary script code in a user last seen 2020-06-01 modified 2020-06-02 plugin id 100026 published 2017-05-08 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/100026 title Apple iTunes < 12.6 Multiple Vulnerabilities (uncredentialed check) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1698.NASL description According to the versions of the expat packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.(CVE-2016-5300) - The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.(CVE-2016-4472) - Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716.(CVE-2015-1283) 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. last seen 2020-06-01 modified 2020-06-02 plugin id 126540 published 2019-07-09 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/126540 title EulerOS Virtualization for ARM 64 3.0.2.0 : expat (EulerOS-SA-2019-1698) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_9164F51EAE2011E7A633009C02A2AB30.NASL description Python reports : Multiple vulnerabilities have been fixed in Python 2.7.14. Please refer to the CVE list for details. last seen 2020-06-01 modified 2020-06-02 plugin id 103796 published 2017-10-12 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/103796 title FreeBSD : Python 2.7 -- multiple vulnerabilities (9164f51e-ae20-11e7-a633-009c02a2ab30) NASL family Misc. NASL id PVS_5_2_0.NASL description The version of Tenable Passive Vulnerability Scanner (PVS) installed on the remote host is 5.x < 5.2.0. It is, therefore, affected by multiple vulnerabilities : - Multiple denial of service vulnerabilities exist in Expat within file xmlparse.c due to a logical error in hash computations. An unauthenticated, remote attacker can exploit these, via a specially crafted XML file containing many identifiers with the same value, to cause the service to exhaust CPU resources. (CVE-2012-0876, CVE-2016-5300) - A flaw exists in the generate_hash_secret_salt() function in file lib/xmlparse.c within Expat due to the generation of non-random output by the PRNG. An unauthenticated, remote attacker can exploit this to more easily predict the PRNG output. (CVE-2012-6702) - Multiple buffer overflow conditions exist within Expat, specifically in the XML_GetBuffer() function in file lib/xmlparse.c, due to improper validation of user-supplied input when handling compressed XML content. An unauthenticated, remote attacker can exploit these to execute arbitrary code. (CVE-2015-1283, CVE-2016-4472) - Multiple buffer overflow conditions exist within the Expat XML parser when handling malformed input documents due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-0718, CVE-2016-0719) - Multiple integer overflow conditions exist in s3_srvr.c, ssl_sess.c, and t1_lib.c due to improper use of pointer arithmetic for heap-buffer boundary checks. An unauthenticated, remote attacker can exploit these to cause a denial of service. (CVE-2016-2177) - An information disclosure vulnerability exists in the dsa_sign_setup() function in dsa_ossl.c due to a failure to properly ensure the use of constant-time operations. An unauthenticated, remote attacker can exploit this, via a timing side-channel attack, to disclose DSA key information. (CVE-2016-2178) - A denial of service vulnerability exists in the DTLS implementation due to a failure to properly restrict the lifetime of queue entries associated with unused out-of-order messages. An unauthenticated, remote attacker can exploit this, by maintaining multiple crafted DTLS sessions simultaneously, to exhaust memory. (CVE-2016-2179) - An out-of-bounds read error exists in the X.509 Public Key Infrastructure Time-Stamp Protocol (TSP) implementation. An unauthenticated, remote attacker can exploit this, via a crafted time-stamp file that is mishandled by the last seen 2020-06-01 modified 2020-06-02 plugin id 96337 published 2017-01-06 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/96337 title Tenable Passive Vulnerability Scanner 5.x < 5.2.0 Multiple Vulnerabilities (SWEET32) NASL family Fedora Local Security Checks NASL id FEDORA_2016-60889583AB.NASL description Security fixes for CVE-2016-4472, CVE-2016-5300, CVE-2016-0718 and CVE-2012-6702. 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 2020-06-05 modified 2016-07-14 plugin id 92102 published 2016-07-14 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92102 title Fedora 23 : expat (2016-60889583ab) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1742.NASL description According to the versions of the expat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - ( Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716.(CVE-2015-1283) - The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.(CVE-2016-4472) - The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.(CVE-2016-5300) 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. last seen 2020-05-06 modified 2019-07-22 plugin id 126869 published 2019-07-22 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/126869 title EulerOS 2.0 SP2 : expat (EulerOS-SA-2019-1742) NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2016-359-01.NASL description New expat packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues. last seen 2020-06-01 modified 2020-06-02 plugin id 96092 published 2016-12-27 reporter This script is Copyright (C) 2016-2017 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/96092 title Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : expat (SSA:2016-359-01) NASL family Windows NASL id ITUNES_12_6.NASL description The version of Apple iTunes installed on the remote Windows host is prior to 12.6. It is, therefore, affected by multiple vulnerabilities : - Multiple vulnerabilities exist in the expat component, the most severe of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities to cause a denial of service condition or the execution of arbitrary code in the context of the current user. (CVE-2009-3270, CVE-2009-3560, CVE-2009-3720, CVE-2012-1147, CVE-2012-1148, CVE-2012-6702, CVE-2015-1283, CVE-2016-0718, CVE-2016-4472, CVE-2016-5300) - Multiple vulnerabilities exist in the SQLite component, the most severe of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted file, to cause a denial of service condition or the execution of arbitrary code in the context of the current user. (CVE-2013-7443, CVE-2015-3414, CVE-2015-3415, CVE-2015-3416, CVE-2015-3717, CVE-2015-6607, CVE-2016-6153) - An information disclosure vulnerability exists in the APNs server component due to client certificates being transmitted in cleartext. A man-in-the-middle attacker can exploit this to disclose sensitive information. (CVE-2017-2383) - A use-after-free error exists in the WebKit component due to improper handling of RenderBox objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-2463) - Multiple universal cross-site scripting (XSS) vulnerabilities exist in the WebKit component due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted web page, to execute arbitrary script code in a user last seen 2020-06-01 modified 2020-06-02 plugin id 100025 published 2017-05-08 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/100025 title Apple iTunes < 12.6 Multiple Vulnerabilities (credentialed check) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201701-21.NASL description The remote host is affected by the vulnerability described in GLSA-201701-21 (Expat: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Expat. Please review the CVE identifiers referenced below for details. Impact : A remote attacker, by enticing a user to process a specially crafted XML file, could execute arbitrary code with the privileges of the process or cause a Denial of Service condition. This attack could also be used against automated systems that arbitrarily process XML files. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 96415 published 2017-01-12 reporter This script is Copyright (C) 2017 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/96415 title GLSA-201701-21 : Expat: Multiple vulnerabilities NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2063.NASL description According to the versions of the expat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).(CVE-2018-20843) - ( Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716.(CVE-2015-1283) - The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.(CVE-2016-4472) - The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.(CVE-2016-5300) 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. last seen 2020-05-08 modified 2019-09-24 plugin id 129256 published 2019-09-24 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/129256 title EulerOS 2.0 SP3 : expat (EulerOS-SA-2019-2063) NASL family MacOS X Local Security Checks NASL id MACOS_ITUNES_12_6.NASL description The version of Apple iTunes installed on the remote macOS or Mac OS X host is prior to 12.6. It is, therefore, affected by multiple vulnerabilities : - Multiple vulnerabilities exist in the expat component, the most severe of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities to cause a denial of service condition or the execution of arbitrary code in the context of the current user. (CVE-2009-3270, CVE-2009-3560, CVE-2009-3720, CVE-2012-1147, CVE-2012-1148, CVE-2012-6702, CVE-2015-1283, CVE-2016-0718, CVE-2016-4472, CVE-2016-5300) - Multiple vulnerabilities exist in the SQLite component, the most severe of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these vulnerabilities by convincing a user to open a specially crafted file, to cause a denial of service condition or the execution of arbitrary code in the context of the current user. (CVE-2013-7443, CVE-2015-3414, CVE-2015-3415, CVE-2015-3416, CVE-2015-3717, CVE-2015-6607, CVE-2016-6153) Note that Nessus has not tested for these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 100027 published 2017-05-08 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/100027 title Apple iTunes < 12.6 Multiple Vulnerabilities (macOS) (credentialed check) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1666.NASL description According to the versions of the expat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - ( Multiple integer overflows in the XML_GetBuffer function in Expat through 2.1.0, as used in Google Chrome before 44.0.2403.89 and other products, allow remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted XML data, a related issue to CVE-2015-2716.(CVE-2015-1283) - The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.(CVE-2016-4472) - The XML parser in Expat does not use sufficient entropy for hash initialization, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted identifiers in an XML document. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0876.(CVE-2016-5300) 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. last seen 2020-05-06 modified 2019-06-27 plugin id 126293 published 2019-06-27 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/126293 title EulerOS 2.0 SP5 : expat (EulerOS-SA-2019-1666) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_8719B9358BAE41AD92BA3C826F651219.NASL description python release notes : Multiple vulnerabilities has been fixed in this release. Please refer to the CVE list for details. last seen 2020-06-01 modified 2020-06-02 plugin id 109594 published 2018-05-07 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109594 title FreeBSD : python 2.7 -- multiple vulnerabilities (8719b935-8bae-41ad-92ba-3c826f651219) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0497-1.NASL description This update for python3 fixes the following issues : Update to 3.4.10 (jsc#SLE-9427, bsc#1159208) from 3.4.6 : Security issues fixed : Update expat copy from 2.1.1 to 2.2.0 to fix the following issues: CVE-2012-0876, CVE-2016-0718, CVE-2016-4472, CVE-2017-9233, CVE-2016-9063 CVE-2017-1000158: Fix an integer overflow in thePyString_DecodeEscape function in stringobject.c, resulting in heap-based bufferoverflow (bsc#1068664). 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 2020-03-18 modified 2020-02-27 plugin id 134106 published 2020-02-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134106 title SUSE SLED12 / SLES12 Security Update : python3 (SUSE-SU-2020:0497-1) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3582.NASL description Gustavo Grieco discovered that Expat, an XML parsing C library, does not properly handle certain kinds of malformed input documents, resulting in buffer overflows during processing and error reporting. A remote attacker can take advantage of this flaw to cause an application using the Expat library to crash, or potentially, to execute arbitrary code with the privileges of the user running the application. last seen 2020-06-01 modified 2020-06-02 plugin id 91200 published 2016-05-18 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91200 title Debian DSA-3582-1 : expat - security update
References
- http://www.ubuntu.com/usn/USN-3013-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1344251
- https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde
- http://www.securityfocus.com/bid/91528
- https://security.gentoo.org/glsa/201701-21
- https://www.tenable.com/security/tns-2016-20
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365