Vulnerabilities > CVE-2016-2037 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
The cpio_safer_name_suffix function in util.c in cpio 2.11 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 | |
OS | 2 |
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 SuSE Local Security Checks NASL id OPENSUSE-2017-209.NASL description This update for cpio fixes two issues. This security issue was fixed : - CVE-2016-2037: The cpio_safer_name_suffix function in util.c in cpio allowed remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file (bsc#963448). This non-security issue was fixed : - bsc#1020108: Always use 32 bit CRC to prevent checksum errors for files greater than 32MB This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2017-02-06 plugin id 97006 published 2017-02-06 reporter This script is Copyright (C) 2017-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/97006 title openSUSE Security Update : cpio (openSUSE-2017-209) 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-2017-209. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(97006); script_version("3.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2016-2037"); script_name(english:"openSUSE Security Update : cpio (openSUSE-2017-209)"); script_summary(english:"Check for the openSUSE-2017-209 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 cpio fixes two issues. This security issue was fixed : - CVE-2016-2037: The cpio_safer_name_suffix function in util.c in cpio allowed remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file (bsc#963448). This non-security issue was fixed : - bsc#1020108: Always use 32 bit CRC to prevent checksum errors for files greater than 32MB This update was imported from the SUSE:SLE-12:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1020108" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=963448" ); script_set_attribute(attribute:"solution", value:"Update the affected cpio packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:cpio"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:cpio-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:cpio-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:cpio-lang"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2"); script_set_attribute(attribute:"patch_publication_date", value:"2017/02/04"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/02/06"); 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\.1|SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.1 / 42.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.1", reference:"cpio-2.11-32.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"cpio-debuginfo-2.11-32.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"cpio-debugsource-2.11-32.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"cpio-lang-2.11-32.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"cpio-2.11-33.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"cpio-debuginfo-2.11-33.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"cpio-debugsource-2.11-33.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"cpio-lang-2.11-33.1") ) 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, "cpio / cpio-debuginfo / cpio-debugsource / cpio-lang"); }
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-2906-1.NASL description Alexander Cherepanov discovered that GNU cpio incorrectly handled symbolic links when used with the --no-absolute-filenames option. If a user or automated system were tricked into extracting a specially crafted cpio archive, a remote attacker could possibly use this issue to write arbitrary files. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-1197) Gustavo Grieco discovered that GNU cpio incorrectly handled memory when extracting archive files. If a user or automated system were tricked into extracting a specially crafted cpio archive, a remote attacker could use this issue to cause GNU cpio to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-2037). 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 88894 published 2016-02-23 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/88894 title Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : cpio vulnerabilities (USN-2906-1) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_F59AF30807F311EA8C56F8B156B6DCC8.NASL description Sergey Poznyakoff reports : This stable release fixes several potential vulnerabilities CVE-2015-1197: cpio, when using the --no-absolute-filenames option, allows local users to write to arbitrary files via a symlink attack on a file in an archive. CVE-2016-2037: The cpio_safer_name_suffix function in util.c allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file. CVE-2019-14866: Improper input validation when writing tar header fields leads to unexpected tar generation. last seen 2020-06-01 modified 2020-06-02 plugin id 131109 published 2019-11-18 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/131109 title FreeBSD : GNU cpio -- multiple vulnerabilities (f59af308-07f3-11ea-8c56-f8b156b6dcc8) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3483.NASL description Gustavo Grieco discovered an out-of-bounds write vulnerability in cpio, a tool for creating and extracting cpio archive files, leading to a denial of service (application crash). last seen 2020-06-01 modified 2020-06-02 plugin id 88866 published 2016-02-22 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/88866 title Debian DSA-3483-1 : cpio - security update NASL family Debian Local Security Checks NASL id DEBIAN_DLA-415.NASL description An out-of-bounds write was discovered in the parsing of cpio files. For Debian 6 last seen 2020-03-17 modified 2016-02-16 plugin id 88740 published 2016-02-16 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/88740 title Debian DLA-415-1 : cpio security update NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-0366-1.NASL description This update for cpio fixes two issues. This security issue was fixed : - CVE-2016-2037: The cpio_safer_name_suffix function in util.c in cpio allowed remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file (bsc#963448). The update package also includes non-security fixes. See advisory for details. 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 96976 published 2017-02-03 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/96976 title SUSE SLED12 / SLES12 Security Update : cpio (SUSE-SU-2017:0366-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2016-1041.NASL description According to the versions of the cpio package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - GNU cpio copies files into or out of a cpio or tar archive. Archives are files which contain a collection of other files plus information about them, such as their file name, owner, timestamps, and access permissions. The archive can be another file on the disk, a magnetic tape, or a pipe. GNU cpio supports the following archive formats: binary, old ASCII, new ASCII, crc, HPUX binary, HPUX old ASCII, old tar and POSIX.1 tar. By default, cpio creates binary format archives, so that they are compatible with older cpio programs. When it is extracting files from archives, cpio automatically recognizes which kind of archive it is reading and can read archives created on machines with a different byte-order. - Security Fix(es) - The cpio_safer_name_suffix function in util.c in cpio 2.11 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file.(CVE-2016-2037) - cpio 2.11, when using the --no-absolute-filenames option, allows local users to write to arbitrary files via a symlink attack on a file in an archive.(CVE-2015-1197) 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 2017-05-01 plugin id 99804 published 2017-05-01 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/99804 title EulerOS 2.0 SP1 : cpio (EulerOS-SA-2016-1041)
References
- http://www.debian.org/security/2016/dsa-3483
- http://www.debian.org/security/2016/dsa-3483
- http://www.openwall.com/lists/oss-security/2016/01/19/4
- http://www.openwall.com/lists/oss-security/2016/01/19/4
- http://www.openwall.com/lists/oss-security/2016/01/22/4
- http://www.openwall.com/lists/oss-security/2016/01/22/4
- http://www.securityfocus.com/bid/82293
- http://www.securityfocus.com/bid/82293
- http://www.securitytracker.com/id/1035067
- http://www.securitytracker.com/id/1035067
- http://www.ubuntu.com/usn/USN-2906-1
- http://www.ubuntu.com/usn/USN-2906-1