Vulnerabilities > CVE-2015-8036 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Heap-based buffer overflow in ARM mbed TLS (formerly PolarSSL) 1.3.x before 1.3.14 and 2.x before 2.1.2 allows remote SSL servers to cause a denial of service (client crash) and possibly execute arbitrary code via a long session ticket name to the session ticket extension, which is not properly handled when creating a ClientHello message to resume a session. NOTE: this identifier was SPLIT from CVE-2015-5291 per ADT3 due to different affected version ranges.
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 Debian Local Security Checks NASL id DEBIAN_DSA-3468.NASL description It was discovered that polarssl, a library providing SSL and TLS support, contained two heap-based buffer overflows that could allow a remote attacker to trigger denial of service (via application crash) or arbitrary code execution. last seen 2020-06-01 modified 2020-06-02 plugin id 88602 published 2016-02-08 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88602 title Debian DSA-3468-1 : polarssl - security update code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-3468. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(88602); script_version("2.2"); script_cvs_date("Date: 2018/11/10 11:49:37"); script_cve_id("CVE-2015-5291", "CVE-2015-8036"); script_xref(name:"DSA", value:"3468"); script_name(english:"Debian DSA-3468-1 : polarssl - security update"); script_summary(english:"Checks dpkg output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "It was discovered that polarssl, a library providing SSL and TLS support, contained two heap-based buffer overflows that could allow a remote attacker to trigger denial of service (via application crash) or arbitrary code execution." ); script_set_attribute( attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=801413" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/wheezy/polarssl" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/jessie/polarssl" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2016/dsa-3468" ); script_set_attribute( attribute:"solution", value: "Upgrade the polarssl packages. For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.9-1~deb7u6. For the stable distribution (jessie), these problems have been fixed in version 1.3.9-2.1+deb8u1." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:polarssl"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0"); script_set_attribute(attribute:"patch_publication_date", value:"2016/02/06"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/08"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"7.0", prefix:"libpolarssl-dev", reference:"1.2.9-1~deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"libpolarssl-runtime", reference:"1.2.9-1~deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"libpolarssl0", reference:"1.2.9-1~deb7u6")) flag++; if (deb_check(release:"8.0", prefix:"libpolarssl-dev", reference:"1.3.9-2.1+deb8u1")) flag++; if (deb_check(release:"8.0", prefix:"libpolarssl-runtime", reference:"1.3.9-2.1+deb8u1")) flag++; if (deb_check(release:"8.0", prefix:"libpolarssl7", reference:"1.3.9-2.1+deb8u1")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Fedora Local Security Checks NASL id FEDORA_2015-30A417BEA9.NASL description - Update to 1.3.14 - CVE-2015-5291 Release notes: https://tls.mbed.org/tech- updates/releases/mbedtls-2.1.2-and-1.3.14-and-polarssl-1 .2.17-released Security notes: https://tls.mbed.org/tech-updates/security-advisories/mb edtls-security- advisory-2015-01 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2016-03-04 plugin id 89196 published 2016-03-04 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89196 title Fedora 21 : mbedtls-1.3.14-1.fc21 (2015-30a417bea9) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2015-30a417bea9. # include("compat.inc"); if (description) { script_id(89196); script_version("2.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2015-5291", "CVE-2015-8036"); script_xref(name:"FEDORA", value:"2015-30a417bea9"); script_name(english:"Fedora 21 : mbedtls-1.3.14-1.fc21 (2015-30a417bea9)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: " - Update to 1.3.14 - CVE-2015-5291 Release notes: https://tls.mbed.org/tech- updates/releases/mbedtls-2.1.2-and-1.3.14-and-polarssl-1 .2.17-released Security notes: https://tls.mbed.org/tech-updates/security-advisories/mb edtls-security- advisory-2015-01 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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.redhat.com/show_bug.cgi?id=1270170" ); # https://lists.fedoraproject.org/pipermail/package-announce/2015-October/169625.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?bd4f9a02" ); script_set_attribute( attribute:"see_also", value:"https://tls.mbed.org/tech-" ); # https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security- script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?5629a84e" ); script_set_attribute( attribute:"solution", value:"Update the affected mbedtls package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mbedtls"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:21"); script_set_attribute(attribute:"patch_publication_date", value:"2015/10/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/04"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 Tenable Network Security, Inc."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "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); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^21([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 21.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC21", reference:"mbedtls-1.3.14-1.fc21")) 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, "mbedtls"); }
NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-932.NASL description This update for polarssl fixes the following issues : - CVE-2015-8036: A heap-based buffer overflow could have allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a long session ticket name to the session ticket extension (boo#989694) last seen 2020-06-05 modified 2016-08-05 plugin id 92745 published 2016-08-05 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/92745 title openSUSE Security Update : polarssl (openSUSE-2016-932) 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-2016-932. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(92745); script_version("2.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2015-8036"); script_name(english:"openSUSE Security Update : polarssl (openSUSE-2016-932)"); script_summary(english:"Check for the openSUSE-2016-932 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 polarssl fixes the following issues : - CVE-2015-8036: A heap-based buffer overflow could have allowed remote attackers to cause a denial of service or possibly execute arbitrary code via a long session ticket name to the session ticket extension (boo#989694)" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=989694" ); script_set_attribute( attribute:"solution", value:"Update the affected polarssl packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpolarssl7"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpolarssl7-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:polarssl-devel"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.2"); script_set_attribute(attribute:"patch_publication_date", value:"2016/07/31"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/05"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 Tenable Network Security, Inc."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE13\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.2", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE13.2", reference:"libpolarssl7-1.3.9-17.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"libpolarssl7-debuginfo-1.3.9-17.1") ) flag++; if ( rpm_check(release:"SUSE13.2", reference:"polarssl-devel-1.3.9-17.1") ) 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, "libpolarssl7 / libpolarssl7-debuginfo / polarssl-devel"); }
References
- https://guidovranken.files.wordpress.com/2015/10/cve-2015-5291.pdf
- https://guidovranken.wordpress.com/2015/10/07/cve-2015-5291/
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2015-01
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169625.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00009.html
- http://www.debian.org/security/2016/dsa-3468