Vulnerabilities > CVE-2015-8036 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL

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

Part Description Count
Application
Arm
17
Application
Polarssl
44
OS
Debian
2
OS
Fedoraproject
1
OS
Opensuse
1

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 familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3468.NASL
    descriptionIt 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 seen2020-06-01
    modified2020-06-02
    plugin id88602
    published2016-02-08
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88602
    titleDebian 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 familyFedora Local Security Checks
    NASL idFEDORA_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 seen2020-06-05
    modified2016-03-04
    plugin id89196
    published2016-03-04
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/89196
    titleFedora 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 familySuSE Local Security Checks
    NASL idOPENSUSE-2016-932.NASL
    descriptionThis 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 seen2020-06-05
    modified2016-08-05
    plugin id92745
    published2016-08-05
    reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/92745
    titleopenSUSE 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");
    }