Vulnerabilities > CVE-2020-8597 - Classic Buffer Overflow vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH network
low complexity
point-to-point-protocol-project
wago
debian
canonical
CWE-120
critical
nessus
Summary
eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.
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 Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0631.NASL description An update for ppp is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-02-28 plugin id 134145 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134145 title RHEL 6 : ppp (RHSA-2020:0631) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2020:0631. The text # itself is copyright (C) Red Hat, Inc. # include("compat.inc"); if (description) { script_id(134145); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/11"); script_cve_id("CVE-2020-8597"); script_xref(name:"RHSA", value:"2020:0631"); script_name(english:"RHEL 6 : ppp (RHSA-2020:0631)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Red Hat host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "An update for ppp is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section." ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:0631" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2020-8597" ); script_set_attribute( attribute:"solution", value:"Update the affected ppp, ppp-debuginfo and / or ppp-devel packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/03"); script_set_attribute(attribute:"patch_publication_date", value:"2020/02/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/28"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Red Hat Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu"); 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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat"); os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat"); os_ver = os_ver[1]; if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu); yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo"); if (!empty_or_null(yum_updateinfo)) { rhsa = "RHSA-2020:0631"; yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa); if (!empty_or_null(yum_report)) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : yum_report ); exit(0); } else { audit_message = "affected by Red Hat security advisory " + rhsa; audit(AUDIT_OS_NOT, audit_message); } } else { flag = 0; if (rpm_check(release:"RHEL6", cpu:"i686", reference:"ppp-2.4.5-11.el6_10")) flag++; if (rpm_check(release:"RHEL6", cpu:"s390x", reference:"ppp-2.4.5-11.el6_10")) flag++; if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ppp-2.4.5-11.el6_10")) flag++; if (rpm_check(release:"RHEL6", reference:"ppp-debuginfo-2.4.5-11.el6_10")) flag++; if (rpm_check(release:"RHEL6", reference:"ppp-devel-2.4.5-11.el6_10")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() + redhat_report_package_caveat() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ppp / ppp-debuginfo / ppp-devel"); } }NASL family Scientific Linux Local Security Checks NASL id SL_20200227_PPP_ON_SL7_X.NASL description Security Fix(es) : - ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) last seen 2020-03-18 modified 2020-02-28 plugin id 134151 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134151 title Scientific Linux Security Update : ppp on SL7.x x86_64 (20200227) code # # (C) Tenable Network Security, Inc. # # The descriptive text is (C) Scientific Linux. # include("compat.inc"); if (description) { script_id(134151); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/11"); script_cve_id("CVE-2020-8597"); script_name(english:"Scientific Linux Security Update : ppp on SL7.x x86_64 (20200227)"); 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) : - ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)" ); # https://listserv.fnal.gov/scripts/wa.exe?A2=ind2002&L=SCIENTIFIC-LINUX-ERRATA&P=10648 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?663f20d3" ); script_set_attribute( attribute:"solution", value:"Update the affected ppp, ppp-debuginfo and / or ppp-devel packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ppp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ppp-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:ppp-devel"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/03"); script_set_attribute(attribute:"patch_publication_date", value:"2020/02/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/28"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 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"); os_ver = os_ver[1]; if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu); if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu); flag = 0; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ppp-2.4.5-34.el7_7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ppp-debuginfo-2.4.5-34.el7_7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"ppp-devel-2.4.5-34.el7_7")) 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, "ppp / ppp-debuginfo / ppp-devel"); }NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0633.NASL description An update for ppp is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-02-28 plugin id 134147 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134147 title RHEL 8 : ppp (RHSA-2020:0633) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2020:0633. The text # itself is copyright (C) Red Hat, Inc. # include("compat.inc"); if (description) { script_id(134147); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/11"); script_cve_id("CVE-2020-8597"); script_xref(name:"RHSA", value:"2020:0633"); script_name(english:"RHEL 8 : ppp (RHSA-2020:0633)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Red Hat host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "An update for ppp is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section." ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:0633" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2020-8597" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:network-scripts-ppp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ppp-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8.1"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/03"); script_set_attribute(attribute:"patch_publication_date", value:"2020/02/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/28"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Red Hat Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu"); 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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat"); os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat"); os_ver = os_ver[1]; if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 8.x", "Red Hat " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu); yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo"); if (!empty_or_null(yum_updateinfo)) { rhsa = "RHSA-2020:0633"; yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa); if (!empty_or_null(yum_report)) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : yum_report ); exit(0); } else { audit_message = "affected by Red Hat security advisory " + rhsa; audit(AUDIT_OS_NOT, audit_message); } } else { flag = 0; if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"network-scripts-ppp-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"i686", reference:"ppp-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"ppp-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"ppp-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"aarch64", reference:"ppp-debuginfo-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"i686", reference:"ppp-debuginfo-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"ppp-debuginfo-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"ppp-debuginfo-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"aarch64", reference:"ppp-debugsource-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"i686", reference:"ppp-debugsource-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"ppp-debugsource-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"ppp-debugsource-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"aarch64", reference:"ppp-devel-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"i686", reference:"ppp-devel-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"s390x", reference:"ppp-devel-2.4.7-26.el8_1")) flag++; if (rpm_check(release:"RHEL8", sp:"1", cpu:"x86_64", reference:"ppp-devel-2.4.7-26.el8_1")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() + redhat_report_package_caveat() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "network-scripts-ppp / ppp / ppp-debuginfo / ppp-debugsource / etc"); } }NASL family Fedora Local Security Checks NASL id FEDORA_2020-4304397FE0.NASL description This is an update fixing CVE-2020-8597. 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 2020-03-18 modified 2020-03-12 plugin id 134436 published 2020-03-12 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134436 title Fedora 31 : ppp (2020-4304397fe0) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4632.NASL description Ilja Van Sprundel reported a logic flaw in the Extensible Authentication Protocol (EAP) packet parser in the Point-to-Point Protocol Daemon (pppd). An unauthenticated attacker can take advantage of this flaw to trigger a stack-based buffer overflow, leading to denial of service (pppd daemon crash). last seen 2020-03-17 modified 2020-02-24 plugin id 133880 published 2020-02-24 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133880 title Debian DSA-4632-1 : ppp - security update NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2020-1371.NASL description eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.(CVE-2020-8597) last seen 2020-06-10 modified 2020-06-04 plugin id 137094 published 2020-06-04 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/137094 title Amazon Linux AMI : ppp (ALAS-2020-1371) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1426.NASL description According to the versions of the ppp package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.(CVE-2020-8597) - Buffer overflow in the rc_mksid function in plugins/radius/util.c in Paul last seen 2020-05-06 modified 2020-04-15 plugin id 135555 published 2020-04-15 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135555 title EulerOS 2.0 SP3 : ppp (EulerOS-SA-2020-1426) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2020-0027_PPP.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has ppp packages installed that are affected by a vulnerability: - eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions. (CVE-2020-8597) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-05 modified 2020-05-27 plugin id 136905 published 2020-05-27 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136905 title NewStart CGSL CORE 5.04 / MAIN 5.04 : ppp Vulnerability (NS-SA-2020-0027) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1294.NASL description According to the version of the ppp packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.(CVE-2020-8597) 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 2020-05-03 modified 2020-03-23 plugin id 134786 published 2020-03-23 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134786 title EulerOS 2.0 SP8 : ppp (EulerOS-SA-2020-1294) NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2020-064-01.NASL description New ppp packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix a security issue. last seen 2020-03-17 modified 2020-03-06 plugin id 134277 published 2020-03-06 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134277 title Slackware 14.0 / 14.1 / 14.2 / current : ppp (SSA:2020-064-01) NASL family SuSE Local Security Checks NASL id OPENSUSE-2020-286.NASL description This update for ppp fixes the following security issue : - CVE-2020-8597: Fixed a buffer overflow in the eap_request and eap_response functions (bsc#1162610). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-03-18 modified 2020-03-06 plugin id 134279 published 2020-03-06 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134279 title openSUSE Security Update : ppp (openSUSE-2020-286) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0489-1.NASL description This update for ppp fixes the following security issue : CVE-2020-8597: Fixed a buffer overflow in the eap_request and eap_response functions (bsc#1162610). 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 134101 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/134101 title SUSE SLED15 / SLES15 Security Update : ppp (SUSE-SU-2020:0489-1) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-0630.NASL description An update for ppp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-17 modified 2020-02-28 plugin id 134121 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134121 title CentOS 7 : ppp (CESA-2020:0630) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2020-0630.NASL description From Red Hat Security Advisory 2020:0630 : An update for ppp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-02-28 plugin id 134141 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134141 title Oracle Linux 7 : ppp (ELSA-2020-0630) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-0631.NASL description An update for ppp is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-17 modified 2020-02-28 plugin id 134122 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134122 title CentOS 6 : ppp (CESA-2020:0631) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4288-1.NASL description It was discovered that ppp incorrectly handled certain rhostname values. A remote attacker could use this issue to cause ppp to crash, resulting in a denial of service, or possibly execute arbitrary code. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-18 modified 2020-02-24 plugin id 133950 published 2020-02-24 reporter Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133950 title Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : ppp vulnerability (USN-4288-1) NASL family Scientific Linux Local Security Checks NASL id SL_20200227_PPP_ON_SL6_X.NASL description Security Fix(es) : - ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) last seen 2020-03-18 modified 2020-02-28 plugin id 134150 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134150 title Scientific Linux Security Update : ppp on SL6.x i386/x86_64 (20200227) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0490-1.NASL description This update for ppp fixes the following security issue : CVE-2020-8597: Fixed a buffer overflow in the eap_request and eap_response functions (bsc#1162610). 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 134102 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/134102 title SUSE SLED12 / SLES12 Security Update : ppp (SUSE-SU-2020:0490-1) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-2097.NASL description Ilja Van Sprundel discovered a buffer overflow vulnerability in ppp, the Point-to-Point Protocol daemon. When receiving an EAP Request message in client mode, an attacker was able to overflow the rhostname array by providing a very long name. This issue is also mitigated by Debian last seen 2020-03-17 modified 2020-02-10 plugin id 133561 published 2020-02-10 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133561 title Debian DLA-2097-1 : ppp security update NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1319.NASL description According to the version of the ppp package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.(CVE-2020-8597) 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 2020-03-23 plugin id 134810 published 2020-03-23 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134810 title EulerOS 2.0 SP5 : ppp (EulerOS-SA-2020-1319) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2020-0633.NASL description From Red Hat Security Advisory 2020:0633 : An update for ppp is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-03-02 plugin id 134191 published 2020-03-02 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134191 title Oracle Linux 8 : ppp (ELSA-2020-0633) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2020-0631.NASL description From Red Hat Security Advisory 2020:0631 : An update for ppp is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-02-28 plugin id 134142 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134142 title Oracle Linux 6 : ppp (ELSA-2020-0631) NASL family Amazon Linux Local Security Checks NASL id AL2_ALAS-2020-1400.NASL description eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions. (CVE-2020-8597) last seen 2020-03-17 modified 2020-03-09 plugin id 134328 published 2020-03-09 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134328 title Amazon Linux 2 : ppp (ALAS-2020-1400) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0630.NASL description An update for ppp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-02-28 plugin id 134144 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134144 title RHEL 7 : ppp (RHSA-2020:0630) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-0634.NASL description An update for ppp is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. 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 ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line. Security Fix(es) : * ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. last seen 2020-03-18 modified 2020-02-28 plugin id 134148 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134148 title RHEL 8 : ppp (RHSA-2020:0634) NASL family Fedora Local Security Checks NASL id FEDORA_2020-571091C70B.NASL description This is an update fixing CVE-2020-8597. 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 2020-03-18 modified 2020-03-09 plugin id 134333 published 2020-03-09 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134333 title Fedora 30 : ppp (2020-571091c70b) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-202003-19.NASL description The remote host is affected by the vulnerability described in GLSA-202003-19 (PPP: Buffer overflow) It was discovered that bounds check in PPP for the rhostname was improperly constructed in the EAP request and response functions. Impact : A remote attacker, by sending specially crafted authentication data, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-03-19 modified 2020-03-16 plugin id 134596 published 2020-03-16 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134596 title GLSA-202003-19 : PPP: Buffer overflow
Packetstorm
| data source | https://packetstormsecurity.com/files/download/156802/CVE-2020-8597.py.txt |
| id | PACKETSTORM:156802 |
| last seen | 2020-03-20 |
| published | 2020-03-18 |
| reporter | nu11secur1ty |
| source | https://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html |
| title | pppd 2.4.8 Buffer Overflow |
Redhat
| advisories |
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| rpms |
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The Hacker News
| id | THN:BB51ABA4A4D1478690F5C155F8B9597A |
| last seen | 2020-03-06 |
| modified | 2020-03-06 |
| published | 2020-03-05 |
| reporter | The Hacker News |
| source | https://thehackernews.com/2020/03/ppp-daemon-vulnerability.html |
| title | Critical PPP Daemon Flaw Opens Most Linux Systems to Remote Hackers |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00006.html
- http://packetstormsecurity.com/files/156662/pppd-2.4.8-Buffer-Overflow.html
- http://packetstormsecurity.com/files/156662/pppd-2.4.8-Buffer-Overflow.html
- http://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html
- http://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html
- http://seclists.org/fulldisclosure/2020/Mar/6
- http://seclists.org/fulldisclosure/2020/Mar/6
- https://access.redhat.com/errata/RHSA-2020:0630
- https://access.redhat.com/errata/RHSA-2020:0630
- https://access.redhat.com/errata/RHSA-2020:0631
- https://access.redhat.com/errata/RHSA-2020:0631
- https://access.redhat.com/errata/RHSA-2020:0633
- https://access.redhat.com/errata/RHSA-2020:0633
- https://access.redhat.com/errata/RHSA-2020:0634
- https://access.redhat.com/errata/RHSA-2020:0634
- https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf
- https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426
- https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426
- https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136
- https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136
- https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html
- https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UNJNHWOO4XF73M2W56ILZUY4JQG3JXIR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UNJNHWOO4XF73M2W56ILZUY4JQG3JXIR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YOFDAIOWSWPG732ASYUZNINMXDHY4APE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YOFDAIOWSWPG732ASYUZNINMXDHY4APE/
- https://security.gentoo.org/glsa/202003-19
- https://security.gentoo.org/glsa/202003-19
- https://security.netapp.com/advisory/ntap-20200313-0004/
- https://security.netapp.com/advisory/ntap-20200313-0004/
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04
- https://usn.ubuntu.com/4288-1/
- https://usn.ubuntu.com/4288-1/
- https://usn.ubuntu.com/4288-2/
- https://usn.ubuntu.com/4288-2/
- https://www.debian.org/security/2020/dsa-4632
- https://www.debian.org/security/2020/dsa-4632
- https://www.kb.cert.org/vuls/id/782301
- https://www.kb.cert.org/vuls/id/782301
- https://www.synology.com/security/advisory/Synology_SA_20_02
- https://www.synology.com/security/advisory/Synology_SA_20_02