Vulnerabilities > CVE-2009-1086 - Resource Management Errors vulnerability in Nlnetlabs Ldns 1.4.0/1.4.1

047910
CVSS 6.4 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
nlnetlabs
CWE-399
nessus

Summary

Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.

Vulnerable Configurations

Part Description Count
Application
Nlnetlabs
2

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-1795.NASL
    descriptionStefan Kaltenbrunner discovered that ldns, a library and set of utilities to facilitate DNS programming, did not correctly implement a buffer boundary check in its RR DNS record parser. This weakness could enable overflow of a heap buffer if a maliciously-crafted record is parsed, potentially allowing the execution of arbitrary code. The scope of compromise will vary with the context in which ldns is used, and could present either a local or remote attack vector.
    last seen2020-06-01
    modified2020-06-02
    plugin id38723
    published2009-05-11
    reporterThis script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/38723
    titleDebian DSA-1795-1 : ldns - buffer overflow
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Debian Security Advisory DSA-1795. The text 
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(38723);
      script_version("1.9");
      script_cvs_date("Date: 2019/08/02 13:32:22");
    
      script_cve_id("CVE-2009-1086");
      script_xref(name:"DSA", value:"1795");
    
      script_name(english:"Debian DSA-1795-1 : ldns - buffer overflow");
      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:
    "Stefan Kaltenbrunner discovered that ldns, a library and set of
    utilities to facilitate DNS programming, did not correctly implement a
    buffer boundary check in its RR DNS record parser. This weakness could
    enable overflow of a heap buffer if a maliciously-crafted record is
    parsed, potentially allowing the execution of arbitrary code. The
    scope of compromise will vary with the context in which ldns is used,
    and could present either a local or remote attack vector."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.debian.org/security/2009/dsa-1795"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Upgrade the ldns packages.
    
    The old stable distribution (etch) is not affected by this issue.
    
    For the stable distribution (lenny), this problem has been fixed in
    version 1.4.0-1+lenny1."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P");
      script_cwe_id(399);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ldns");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2009/05/07");
      script_set_attribute(attribute:"plugin_publication_date", value:"2009/05/11");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2009-2019 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:"5.0", prefix:"ldnsutils", reference:"1.4.0-1+lenny1")) flag++;
    if (deb_check(release:"5.0", prefix:"libldns-dev", reference:"1.4.0-1+lenny1")) flag++;
    if (deb_check(release:"5.0", prefix:"libldns1", reference:"1.4.0-1+lenny1")) 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 familySuSE Local Security Checks
    NASL idSUSE_11_1_UNBOUND-090429.NASL
    descriptionThis update fixes a heap-based buffer overflow in the ldns_rr_new_frm_str_internal() function. This allowed remote attackers to cause a denial of service and possibly execute arbitrary code via a DNS resource record (RR) with a long class field and possibly TTL field. (CVE-2009-1086)
    last seen2020-06-01
    modified2020-06-02
    plugin id40317
    published2009-07-21
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/40317
    titleopenSUSE Security Update : unbound (unbound-840)
    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 unbound-840.
    #
    # The text description of this plugin is (C) SUSE LLC.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(40317);
      script_version("1.10");
      script_cvs_date("Date: 2019/10/25 13:36:35");
    
      script_cve_id("CVE-2009-1086");
    
      script_name(english:"openSUSE Security Update : unbound (unbound-840)");
      script_summary(english:"Check for the unbound-840 patch");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote openSUSE host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "This update fixes a heap-based buffer overflow in the
    ldns_rr_new_frm_str_internal() function. This allowed remote attackers
    to cause a denial of service and possibly execute arbitrary code via a
    DNS resource record (RR) with a long class field and possibly TTL
    field. (CVE-2009-1086)"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=488631"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected unbound packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P");
      script_cwe_id(399);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:unbound");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:unbound-devel");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.1");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2009/04/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2009/07/21");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2009-2019 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 !~ "^(SUSE11\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.1", 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:"SUSE11.1", reference:"unbound-1.0.0-2.21.1") ) flag++;
    if ( rpm_check(release:"SUSE11.1", reference:"unbound-devel-1.0.0-2.21.1") ) 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, "ldns/unbound");
    }