Vulnerabilities > CVE-2017-15670 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in GNU Glibc
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.
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 Scientific Linux Local Security Checks NASL id SL_20180410_GLIBC_ON_SL7_X.NASL description Security Fix(es) : - glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001) - glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) - glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) - glibc: denial of service in getnetbyname function (CVE-2014-9402) - glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180) - glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132) Additional Changes : last seen 2020-03-18 modified 2018-05-01 plugin id 109447 published 2018-05-01 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109447 title Scientific Linux Security Update : glibc on SL7.x x86_64 (20180410) code # # (C) Tenable Network Security, Inc. # # The descriptive text is (C) Scientific Linux. # include("compat.inc"); if (description) { script_id(109447); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/24"); script_cve_id("CVE-2014-9402", "CVE-2015-5180", "CVE-2017-12132", "CVE-2017-15670", "CVE-2017-15804", "CVE-2018-1000001"); script_name(english:"Scientific Linux Security Update : glibc on SL7.x x86_64 (20180410)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Scientific Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Security Fix(es) : - glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001) - glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) - glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) - glibc: denial of service in getnetbyname function (CVE-2014-9402) - glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180) - glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132) Additional Changes :" ); # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1804&L=scientific-linux-errata&F=&S=&P=7441 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?262112fc" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss_temporal_vector("CVSS2#E:F/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:F/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:"metasploit_name", value:'glibc "realpath()" Privilege Escalation'); script_set_attribute(attribute:"exploit_framework_metasploit", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:glibc"); 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script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/01"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Scientific Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux"); os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux"); 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if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-static-2.17-222.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"glibc-utils-2.17-222.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"nscd-2.17-222.el7")) 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, "glibc / glibc-common / glibc-debuginfo / glibc-debuginfo-common / etc"); }NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-30.NASL description This update for glibc fixes the following issues : - A privilege escalation bug in the realpath() function has been fixed. [CVE-2018-1000001, bsc#1074293] - A memory leak and a buffer overflow in the dynamic ELF loader has been fixed. [CVE-2017-1000408, CVE-2017-1000409, bsc#1071319] - An issue in the code handling RPATHs was fixed that could have been exploited by an attacker to execute code loaded from arbitrary libraries. [CVE-2017-16997, bsc#1073231] - A potential crash caused by a use-after-free bug in pthread_create() has been fixed. [bsc#1053188] - A bug that prevented users to build shared objects which use the optimized libmvec.so API has been fixed. [bsc#1070905] - A memory leak in the glob() function has been fixed. [CVE-2017-15670, CVE-2017-15671, CVE-2017-15804, bsc#1064569, bsc#1064580, bsc#1064583] - A bug that would lose the syscall error code value in case of crashes has been fixed. [bsc#1063675] This update was imported from the SUSE:SLE-12-SP2:Update update project. last seen 2020-06-05 modified 2018-01-16 plugin id 106059 published 2018-01-16 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106059 title openSUSE Security Update : glibc (openSUSE-2018-30) 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-2018-30. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(106059); script_version("3.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2017-1000408", "CVE-2017-1000409", "CVE-2017-15670", "CVE-2017-15671", "CVE-2017-15804", "CVE-2017-16997", "CVE-2018-1000001"); script_name(english:"openSUSE Security Update : glibc (openSUSE-2018-30)"); script_summary(english:"Check for the openSUSE-2018-30 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 glibc fixes the following issues : - A privilege escalation bug in the realpath() function has been fixed. 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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|SUSE42\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2 / 42.3", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.2", reference:"glibc-2.22-4.12.1") ) flag++; if ( rpm_check(release:"SUSE42.2", reference:"glibc-debuginfo-2.22-4.12.1") ) flag++; 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if ( rpm_check(release:"SUSE42.3", reference:"glibc-devel-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-devel-debuginfo-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-devel-static-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-extra-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-extra-debuginfo-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-html-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-i18ndata-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-info-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-locale-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-locale-debuginfo-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-obsolete-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-obsolete-debuginfo-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-profile-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-utils-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-utils-debuginfo-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"glibc-utils-debugsource-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"nscd-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"nscd-debuginfo-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-debuginfo-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-devel-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-devel-debuginfo-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-devel-static-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-locale-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-locale-debuginfo-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-profile-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-utils-32bit-2.22-10.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"glibc-utils-debuginfo-32bit-2.22-10.1") ) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "glibc-utils / glibc-utils-32bit / glibc-utils-debuginfo / etc"); }NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-0805.NASL description From Red Hat Security Advisory 2018:0805 : An update for glibc is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001) * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) * glibc: denial of service in getnetbyname function (CVE-2014-9402) * glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180) * glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank halfdog for reporting CVE-2018-1000001. The CVE-2015-5180 issue was discovered by Florian Weimer (Red Hat Product Security). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 109105 published 2018-04-18 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109105 title Oracle Linux 7 : glibc (ELSA-2018-0805) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2018:0805 and # Oracle Linux Security Advisory ELSA-2018-0805 respectively. # include("compat.inc"); if (description) { script_id(109105); script_version("1.4"); script_cvs_date("Date: 2019/09/27 13:00:38"); script_cve_id("CVE-2014-9402", "CVE-2015-5180", "CVE-2017-12132", "CVE-2017-15670", "CVE-2017-15804", "CVE-2018-1000001"); script_xref(name:"RHSA", value:"2018:0805"); script_name(english:"Oracle Linux 7 : glibc (ELSA-2018-0805)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Oracle Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "From Red Hat Security Advisory 2018:0805 : An update for glibc is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001) * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) * glibc: denial of service in getnetbyname function (CVE-2014-9402) * glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180) * glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank halfdog for reporting CVE-2018-1000001. The CVE-2015-5180 issue was discovered by Florian Weimer (Red Hat Product Security). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section." ); script_set_attribute( attribute:"see_also", value:"https://oss.oracle.com/pipermail/el-errata/2018-April/007611.html" ); script_set_attribute( attribute:"solution", value:"Update the affected glibc packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C"); script_set_cvss_temporal_vector("CVSS2#E:F/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:F/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:"metasploit_name", value:'glibc "realpath()" Privilege Escalation'); script_set_attribute(attribute:"exploit_framework_metasploit", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-common"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-headers"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-static"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-utils"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nscd"); script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7"); script_set_attribute(attribute:"vuln_publication_date", value:"2015/02/24"); script_set_attribute(attribute:"patch_publication_date", value:"2018/04/17"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/18"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Oracle Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux"); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux"); os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu); if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu); flag = 0; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"glibc-2.17-222.el7")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"glibc-common-2.17-222.el7")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"glibc-devel-2.17-222.el7")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"glibc-headers-2.17-222.el7")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"glibc-static-2.17-222.el7")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"glibc-utils-2.17-222.el7")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"nscd-2.17-222.el7")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "glibc / glibc-common / glibc-devel / glibc-headers / glibc-static / etc"); }NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-1879.NASL description From Red Hat Security Advisory 2018:1879 : An update for glibc is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 110704 published 2018-06-27 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110704 title Oracle Linux 6 : glibc (ELSA-2018-1879) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2018:1879 and # Oracle Linux Security Advisory ELSA-2018-1879 respectively. # include("compat.inc"); if (description) { script_id(110704); script_version("1.2"); script_cvs_date("Date: 2019/09/27 13:00:38"); script_cve_id("CVE-2017-15670", "CVE-2017-15804"); script_xref(name:"RHSA", value:"2018:1879"); script_name(english:"Oracle Linux 6 : glibc (ELSA-2018-1879)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Oracle Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "From Red Hat Security Advisory 2018:1879 : An update for glibc is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section." ); script_set_attribute( attribute:"see_also", value:"https://oss.oracle.com/pipermail/el-errata/2018-June/007806.html" ); script_set_attribute( attribute:"solution", value:"Update the affected glibc packages." ); 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:oracle:linux:glibc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-common"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-headers"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-static"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:glibc-utils"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:nscd"); script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/20"); script_set_attribute(attribute:"patch_publication_date", value:"2018/06/26"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/27"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Oracle Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux"); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux"); os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6", "Oracle Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu); flag = 0; if (rpm_check(release:"EL6", reference:"glibc-2.12-1.212.0.1.el6")) flag++; if (rpm_check(release:"EL6", reference:"glibc-common-2.12-1.212.0.1.el6")) flag++; if (rpm_check(release:"EL6", reference:"glibc-devel-2.12-1.212.0.1.el6")) flag++; if (rpm_check(release:"EL6", reference:"glibc-headers-2.12-1.212.0.1.el6")) flag++; if (rpm_check(release:"EL6", reference:"glibc-static-2.12-1.212.0.1.el6")) flag++; if (rpm_check(release:"EL6", reference:"glibc-utils-2.12-1.212.0.1.el6")) flag++; if (rpm_check(release:"EL6", reference:"nscd-2.12-1.212.0.1.el6")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "glibc / glibc-common / glibc-devel / glibc-headers / glibc-static / etc"); }NASL family Fedora Local Security Checks NASL id FEDORA_2018-8E27AD96ED.NASL description This update addresses two security vulnerabilities : - CVE-2017-15670, CVE-2017-15671, CVE-2017-15804: Various vulnerabilities could lead to memory corruption in the `glob` and `glob64` function. (RHBZ#1505298, RHBZ##1504807) - CVE-2017-16997: Check for empty tokens before dynamic string token expansion in the dynamic linker, so that pre-existing privileged programs with `$ORIGIN` rpaths/runpaths do not cause the dynamic linker to search the current directory, potentially leading to privilege escalation. (RHBZ#1526866). - CVE-2018-1000001: `getcwd` would sometimes return a non-absolute path, confusing the `realpath` function, leading to privilege escalation in conjunction with user namespaces. (RHBZ#1533837) In addition, this update replaces the dynamic linker trampoline on x86-64 with a version which uses the `XSAVE` instruction if it is available. This improves compatibility with future hardware and compilers which do not follow the x86-64 ABI. This update also adjusts the thread stack size accounting to provide additional stack space compared to previous glibc versions (to avoid introducing RHBZ#1527887). 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 2018-01-24 plugin id 106281 published 2018-01-24 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106281 title Fedora 26 : glibc (2018-8e27ad96ed) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2017-1267.NASL description According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.(CVE-2017-15670) - The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.(CVE-2017-15804) 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 2017-11-01 plugin id 104292 published 2017-11-01 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/104292 title EulerOS 2.0 SP1 : glibc (EulerOS-SA-2017-1267) NASL family Fedora Local Security Checks NASL id FEDORA_2017-0D3FDD3D1F.NASL description This update adds support for the IBM858 codepage (RHBZ#1416405). It moves the `nss_compat` NSS service module to the main glibc package (RHBZ#1400538). As a security hardening measure, stdio streams are no longer flushed on process abort/assertion failure (RHBZ#1498880). `/var/db/Makefile` is now included in the `nss_db` package (RHBZ#1498900). Fixes installation related failures for IBM z Series (RHBZ#1499260). Two security fixes for the `glob` function are provided (CVE-2017-15670, CVE-2017-15671, RHBZ#1504807). An error in the `sysconf` function which caused it to return -1 for `_SC_IOV_MAX` has been corrected (RHBZ#1504165). The included upstream update from the glibc 2.26 stable branch improves C++ compatibility for ` <math.h>` functions and fixes a memory leak in malloc when thread local caches are in use. 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 2018-01-15 plugin id 105814 published 2018-01-15 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/105814 title Fedora 27 : glibc (2017-0d3fdd3d1f) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2018-0805.NASL description An update for glibc is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001) * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) * glibc: denial of service in getnetbyname function (CVE-2014-9402) * glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180) * glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank halfdog for reporting CVE-2018-1000001. The CVE-2015-5180 issue was discovered by Florian Weimer (Red Hat Product Security). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 109371 published 2018-04-27 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109371 title CentOS 7 : glibc (CESA-2018:0805) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-2185-1.NASL description This update for glibc fixes the following issues: Security issues fixed : - CVE-2017-15804: Fix buffer overflow during unescaping of user names in the glob function in glob.c (bsc#1064580). - CVE-2017-15670: Fix buffer overflow in glob with GLOB_TILDE (bsc#1064583). - CVE-2017-15671: Fix memory leak in glob with GLOB_TILDE (bsc#1064569). - CVE-2018-11236: Fix 32bit arch integer overflow in stdlib/canonicalize.c when processing very long pathname arguments (bsc#1094161). - CVE-2017-12132: Reduce advertised EDNS0 buffer size to guard against fragmentation attacks (bsc#1051791). 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 111546 published 2018-08-06 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111546 title SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2185-1) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0142_GLIBC.NASL description The remote NewStart CGSL host, running version MAIN 4.05, has glibc packages installed that are affected by multiple vulnerabilities: - The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string. (CVE-2017-15670) - The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator. (CVE-2017-15804) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 127406 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127406 title NewStart CGSL MAIN 4.05 : glibc Multiple Vulnerabilities (NS-SA-2019-0142) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-2883-1.NASL description This update for glibc fixes the following security issues : CVE-2017-15670: Prevent off-by-one error that lead to a heap-based buffer overflow in the glob function, related to the processing of home directories using the ~ operator followed by a long string (bsc#1064583) CVE-2017-15804: The glob function contained a buffer overflow during unescaping of user names with the ~ operator (bsc#1064580) CVE-2015-5180: res_query in libresolv allowed remote attackers to cause a denial of service (NULL pointer dereference and process crash) (bsc#941234). 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 117804 published 2018-09-27 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/117804 title SUSE SLES11 Security Update : glibc (SUSE-SU-2018:2883-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-0805.NASL description An update for glibc is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001) * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) * glibc: denial of service in getnetbyname function (CVE-2014-9402) * glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180) * glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank halfdog for reporting CVE-2018-1000001. The CVE-2015-5180 issue was discovered by Florian Weimer (Red Hat Product Security). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 108985 published 2018-04-11 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108985 title RHEL 7 : glibc (RHSA-2018:0805) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201804-02.NASL description The remote host is affected by the vulnerability described in GLSA-201804-02 (glibc: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in glibc. Please review the CVE identifiers referenced below for details. Impact : An attacker could possibly execute arbitrary code, escalate privileges, cause a Denial of Service condition, or have other unspecified impacts. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 108822 published 2018-04-04 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108822 title GLSA-201804-02 : glibc: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-2187-1.NASL description This update for glibc fixes the following issues: Security issues fixed : - CVE-2017-15804: Fix buffer overflow during unescaping of user names in the glob function in glob.c (bsc#1064580). - CVE-2017-15670: Fix buffer overflow in glob with GLOB_TILDE (bsc#1064583). - CVE-2017-15671: Fix memory leak in glob with GLOB_TILDE (bsc#1064569). - CVE-2018-11236: Fix 32bit arch integer overflow in stdlib/canonicalize.c when processing very long pathname arguments (bsc#1094161). - CVE-2017-12132: Reduce advertised EDNS0 buffer size to guard against fragmentation attacks (bsc#1051791). - CVE-2018-1000001: Avoid underflow of malloced area (bsc#1074293). 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 111547 published 2018-08-06 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111547 title SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2187-1) NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041_GLIBC.NASL description An update of the glibc package has been released. last seen 2020-03-17 modified 2019-02-07 plugin id 121750 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/121750 title Photon OS 1.0: Glibc PHSA-2017-0041 NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-1879.NASL description An update for glibc is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 110603 published 2018-06-19 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110603 title RHEL 6 : glibc (RHSA-2018:1879) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2018-1017.NASL description Fragmentation attacks possible when EDNS0 is enabled The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.(CVE-2017-12132) Buffer overflow in glob with GLOB_TILDE The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.(CVE-2017-15670) Denial of service in getnetbyname function The nss_dns implementation of getnetbyname in GNU C Library (aka glibc) before 2.21, when the DNS backend in the Name Service Switch configuration is enabled, allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being process.(CVE-2014-9402) DNS resolver NULL pointer dereference with crafted record type res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash).(CVE-2015-5180) realpath() buffer underflow when getcwd() returns relative path allows privilege escalation In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.(CVE-2018-1000001) Buffer overflow during unescaping of user names with the ~ operator The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.(CVE-2017-15804) last seen 2020-06-01 modified 2020-06-02 plugin id 109699 published 2018-05-11 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109699 title Amazon Linux AMI : glibc (ALAS-2018-1017) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1552.NASL description According to the versions of the glibc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - It was discovered that the nss_files backend for the Name Service Switch in glibc would return incorrect data to applications or corrupt the heap (depending on adjacent heap contents). A local attacker could potentially use this flaw to execute arbitrary code on the system.(CVE-2015-5277) - A directory traveral flaw was found in the way glibc loaded locale files. An attacker able to make an application use a specially crafted locale name value (for example, specified in an LC_* environment variable) could possibly use this flaw to execute arbitrary code with the privileges of that application.(CVE-2014-0475) - It was found that out-of-range time values passed to the strftime() function could result in an out-of-bounds memory access. This could lead to application crash or, potentially, information disclosure.(CVE-2015-8776) - The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.(CVE-2017-15670) - The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC (EGLIBC) does not initialize the random value for the pointer guard, which makes it easier for context-dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address.(CVE-2013-4788) - An out-of-bounds read flaw was found in the way glibc last seen 2020-06-01 modified 2020-06-02 plugin id 125005 published 2019-05-14 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/125005 title EulerOS Virtualization 3.0.1.0 : glibc (EulerOS-SA-2019-1552) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0024_GLIBC.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has glibc packages installed that are affected by multiple vulnerabilities: - The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string. (CVE-2017-15670) - The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation. (CVE-2017-12132) - The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator. (CVE-2017-15804) - res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash). (CVE-2015-5180) - The nss_dns implementation of getnetbyname in GNU C Library (aka glibc) before 2.21, when the DNS backend in the Name Service Switch configuration is enabled, allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being process. (CVE-2014-9402) - In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution. (CVE-2018-1000001) - Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka glibc or libc6) allows remote attackers to cause a denial of service (crash) via vectors involving hostent conversion. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4458. (CVE-2016-3706) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 127183 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127183 title NewStart CGSL CORE 5.04 / MAIN 5.04 : glibc Multiple Vulnerabilities (NS-SA-2019-0024) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2018-1879.NASL description An update for glibc is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly. Security Fix(es) : * glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) * glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 110648 published 2018-06-22 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110648 title CentOS 6 : glibc (CESA-2018:1879) NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2017-0041.NASL description An update of [systemd,curl,glibc,freetype2] packages for PhotonOS has been released. last seen 2019-02-21 modified 2019-02-07 plugin id 111890 published 2018-08-17 reporter Tenable source https://www.tenable.com/plugins/index.php?view=single&id=111890 title Photon OS 1.0: Curl / Freetype2 / Glibc / Systemd PHSA-2017-0041 (deprecated) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-0074-1.NASL description This update for glibc fixes the following issues : - A privilege escalation bug in the realpath() function has been fixed. [CVE-2018-1000001, bsc#1074293] - A memory leak and a buffer overflow in the dynamic ELF loader has been fixed. [CVE-2017-1000408, CVE-2017-1000409, bsc#1071319] - An issue in the code handling RPATHs was fixed that could have been exploited by an attacker to execute code loaded from arbitrary libraries. [CVE-2017-16997, bsc#1073231] - A potential crash caused by a use-after-free bug in pthread_create() has been fixed. [bsc#1053188] - A bug that prevented users to build shared objects which use the optimized libmvec.so API has been fixed. [bsc#1070905] - A memory leak in the glob() function has been fixed. [CVE-2017-15670, CVE-2017-15671, CVE-2017-15804, bsc#1064569, bsc#1064580, bsc#1064583] - A bug that would lose the syscall error code value in case of crashes has been fixed. [bsc#1063675] 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 106044 published 2018-01-15 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106044 title SUSE SLED12 / SLES12 Security Update : glibc (SUSE-SU-2018:0074-1) NASL family Amazon Linux Local Security Checks NASL id AL2_ALAS-2018-1048.NASL description stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.(CVE-2018-11236) The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string. (CVE-2017-15670) The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.(CVE-2017-15804) An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.(CVE-2017-18269) last seen 2020-06-01 modified 2020-06-02 plugin id 111335 published 2018-07-26 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111335 title Amazon Linux 2 : glibc (ALAS-2018-1048) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3534-1.NASL description It was discovered that the GNU C library did not properly handle all of the possible return values from the kernel getcwd(2) syscall. A local attacker could potentially exploit this to execute arbitrary code in setuid programs and gain administrative privileges. (CVE-2018-1000001) A memory leak was discovered in the _dl_init_paths() function in the GNU C library dynamic loader. A local attacker could potentially exploit this with a specially crafted value in the LD_HWCAP_MASK environment variable, in combination with CVE-2017-1000409 and another vulnerability on a system with hardlink protections disabled, in order to gain administrative privileges. (CVE-2017-1000408) A heap-based buffer overflow was discovered in the _dl_init_paths() function in the GNU C library dynamic loader. A local attacker could potentially exploit this with a specially crafted value in the LD_LIBRARY_PATH environment variable, in combination with CVE-2017-1000408 and another vulnerability on a system with hardlink protections disabled, in order to gain administrative privileges. (CVE-2017-1000409) An off-by-one error leading to a heap-based buffer overflow was discovered in the GNU C library glob() implementation. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code via a maliciously crafted pattern. (CVE-2017-15670) A heap-based buffer overflow was discovered during unescaping of user names with the ~ operator in the GNU C library glob() implementation. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code via a maliciously crafted pattern. (CVE-2017-15804) It was discovered that the GNU C library dynamic loader mishandles RPATH and RUNPATH containing $ORIGIN for privileged (setuid or AT_SECURE) programs. A local attacker could potentially exploit this by providing a specially crafted library in the current working directory in order to gain administrative privileges. (CVE-2017-16997) It was discovered that the GNU C library malloc() implementation could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, resulting in a heap-based overflow. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 17.10. (CVE-2017-17426). 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 106134 published 2018-01-18 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106134 title Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : eglibc, glibc vulnerabilities (USN-3534-1) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2018-0235.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - backport rh patch 1047983 from OL7, Orabug 25407655 - CVE-2017-15670: glob: Fix one-byte overflow with GLOB_TILDE (#1504810) - CVE-2017-15804: glob: Fix buffer overflow in GLOB_TILDE unescaping (#1504810) - Avoid large allocas in the dynamic linker (#1452717) - Fix thread cancellation issues for setmntent and others (#1437147). last seen 2020-06-01 modified 2020-06-02 plugin id 110884 published 2018-07-03 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110884 title OracleVM 3.3 / 3.4 : glibc (OVMSA-2018-0235) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2017-1268.NASL description According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.(CVE-2017-15670) - The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.(CVE-2017-15804) 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 2017-11-01 plugin id 104293 published 2017-11-01 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/104293 title EulerOS 2.0 SP2 : glibc (EulerOS-SA-2017-1268) NASL family Scientific Linux Local Security Checks NASL id SL_20180619_GLIBC_ON_SL6_X.NASL description Security Fix(es) : - glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670) - glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804) last seen 2020-03-18 modified 2018-07-03 plugin id 110886 published 2018-07-03 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110886 title Scientific Linux Security Update : glibc on SL6.x i386/x86_64 (20180619)
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