Vulnerabilities > CVE-2020-5496 - Out-of-bounds Write vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 1 | |
OS | 1 |
Common Weakness Enumeration (CWE)
Nessus
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-202004-14.NASL description The remote host is affected by the vulnerability described in GLSA-202004-14 (FontForge: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in FontForge. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted font using FontForge, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-05-08 modified 2020-05-01 plugin id 136213 published 2020-05-01 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136213 title GLSA-202004-14 : FontForge: Multiple vulnerabilities code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 202004-14. # # The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(136213); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07"); script_cve_id("CVE-2019-15785", "CVE-2020-5395", "CVE-2020-5496"); script_xref(name:"GLSA", value:"202004-14"); script_name(english:"GLSA-202004-14 : FontForge: Multiple vulnerabilities"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-202004-14 (FontForge: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in FontForge. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted font using FontForge, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/202004-14" ); script_set_attribute( attribute:"solution", value: "All FontForge users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=media-gfx/fontforge-20200314'" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:fontforge"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/08/29"); script_set_attribute(attribute:"patch_publication_date", value:"2020/04/30"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/01"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"media-gfx/fontforge", unaffected:make_list("ge 20200314"), vulnerable:make_list("lt 20200314"))) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get()); else security_hole(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "FontForge"); }
NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0118-1.NASL description This update for fontforge fixes the following issues : CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220). CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236). 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 133038 published 2020-01-17 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133038 title SUSE SLED15 / SLES15 Security Update : fontforge (SUSE-SU-2020:0118-1) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from SUSE update advisory SUSE-SU-2020:0118-1. # The text itself is copyright (C) SUSE. # include("compat.inc"); if (description) { script_id(133038); script_version("1.2"); script_cvs_date("Date: 2020/01/21"); script_cve_id("CVE-2020-5395", "CVE-2020-5496"); script_name(english:"SUSE SLED15 / SLES15 Security Update : fontforge (SUSE-SU-2020:0118-1)"); script_summary(english:"Checks rpm output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote SUSE host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "This update for fontforge fixes the following issues : CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220). CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1160220" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1160236" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-5395/" ); script_set_attribute( attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-5496/" ); # https://www.suse.com/support/update/announcement/2020/suse-su-20200118-1/ script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?8452b8bd" ); script_set_attribute( attribute:"solution", value: "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'. Alternatively you can run the command listed for your product : SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1 : zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-118=1" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:fontforge"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:fontforge-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:fontforge-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:fontforge-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/03"); script_set_attribute(attribute:"patch_publication_date", value:"2020/01/16"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/17"); 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:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE"); os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE"); os_ver = os_ver[1]; if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "SUSE " + os_ver); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu); sp = get_kb_item("Host/SuSE/patchlevel"); if (isnull(sp)) sp = "0"; if (os_ver == "SLES15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1", os_ver + " SP" + sp); if (os_ver == "SLED15" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP1", os_ver + " SP" + sp); flag = 0; if (rpm_check(release:"SLES15", sp:"1", reference:"fontforge-20170731-4.3.2")) flag++; if (rpm_check(release:"SLES15", sp:"1", reference:"fontforge-debuginfo-20170731-4.3.2")) flag++; if (rpm_check(release:"SLES15", sp:"1", reference:"fontforge-debugsource-20170731-4.3.2")) flag++; if (rpm_check(release:"SLES15", sp:"1", reference:"fontforge-devel-20170731-4.3.2")) flag++; if (rpm_check(release:"SLED15", sp:"1", reference:"fontforge-20170731-4.3.2")) flag++; if (rpm_check(release:"SLED15", sp:"1", reference:"fontforge-debuginfo-20170731-4.3.2")) flag++; if (rpm_check(release:"SLED15", sp:"1", reference:"fontforge-debugsource-20170731-4.3.2")) flag++; if (rpm_check(release:"SLED15", sp:"1", reference:"fontforge-devel-20170731-4.3.2")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fontforge"); }
NASL family SuSE Local Security Checks NASL id OPENSUSE-2020-89.NASL description This update for fontforge fixes the following issues : - CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220). - CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 133174 published 2020-01-22 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133174 title openSUSE Security Update : fontforge (openSUSE-2020-89) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2020-89. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(133174); script_version("1.2"); script_cvs_date("Date: 2020/01/24"); script_cve_id("CVE-2020-5395", "CVE-2020-5496"); script_name(english:"openSUSE Security Update : fontforge (openSUSE-2020-89)"); script_summary(english:"Check for the openSUSE-2020-89 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 fontforge fixes the following issues : - CVE-2020-5395: Fixed a use-after-free in SFD_GetFontMetaData() (bsc#1160220). - CVE-2020-5496: Fixed a heap-based buffer overflow in Type2NotDefSplines() (bsc#1160236). This update was imported from the SUSE:SLE-15:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1160220" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1160236" ); script_set_attribute( attribute:"solution", value:"Update the affected fontforge packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:fontforge"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:fontforge-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:fontforge-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:fontforge-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.1"); script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/03"); script_set_attribute(attribute:"patch_publication_date", value:"2020/01/21"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/22"); 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:"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 !~ "^(SUSE15\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.1", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE15.1", reference:"fontforge-20170731-lp151.4.3.1") ) flag++; if ( rpm_check(release:"SUSE15.1", reference:"fontforge-debuginfo-20170731-lp151.4.3.1") ) flag++; if ( rpm_check(release:"SUSE15.1", reference:"fontforge-debugsource-20170731-lp151.4.3.1") ) flag++; if ( rpm_check(release:"SUSE15.1", reference:"fontforge-devel-20170731-lp151.4.3.1") ) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fontforge / fontforge-debuginfo / fontforge-debugsource / etc"); }
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00041.html
- https://github.com/fontforge/fontforge/issues/4085
- https://github.com/fontforge/fontforge/issues/4085
- https://lists.debian.org/debian-lts-announce/2024/03/msg00007.html
- https://lists.debian.org/debian-lts-announce/2024/03/msg00007.html
- https://security.gentoo.org/glsa/202004-14
- https://security.gentoo.org/glsa/202004-14