Vulnerabilities > CVE-2008-7224 - Buffer Errors vulnerability in Elinks 0.11.1/0.11.11/0.11.2

047910
CVSS 7.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
COMPLETE
network
low complexity
elinks
CWE-119
nessus
NVD
Published: 2009-09-14
Updated: 2017-09-29

Summary

Buffer overflow in entity_cache in ELinks before 0.11.4rc0 allows remote attackers to cause a denial of service (crash) via a crafted link.

Vulnerable Configurations

Part Description Count
Application
Elinks
4

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 familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2009-1471.NASL
    descriptionFrom Red Hat Security Advisory 2009:1471 : An updated elinks package that fixes two security issues is now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having important security impact by the Red Hat Security Response Team. ELinks is a text-based Web browser. ELinks does not display any images, but it does support frames, tables, and most other HTML tags. An off-by-one buffer overflow flaw was discovered in the way ELinks handled its internal cache of string representations for HTML special entities. A remote attacker could use this flaw to create a specially crafted HTML file that would cause ELinks to crash or, possibly, execute arbitrary code when rendered. (CVE-2008-7224) It was discovered that ELinks tried to load translation files using relative paths. A local attacker able to trick a victim into running ELinks in a folder containing specially crafted translation files could use this flaw to confuse the victim via incorrect translations, or cause ELinks to crash and possibly execute arbitrary code via embedded formatting sequences in translated messages. (CVE-2007-2027) All ELinks users are advised to upgrade to this updated package, which contains backported patches to resolve these issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id67934
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/67934
    titleOracle Linux 4 / 5 : elinks (ELSA-2009-1471)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2009:1471 and 
# Oracle Linux Security Advisory ELSA-2009-1471 respectively.
#

include("compat.inc");

if (description)
{
  script_id(67934);
  script_version("1.9");
  script_cvs_date("Date: 2019/10/25 13:36:08");

  script_cve_id("CVE-2007-2027", "CVE-2008-7224");
  script_xref(name:"RHSA", value:"2009:1471");

  script_name(english:"Oracle Linux 4 / 5 : elinks (ELSA-2009-1471)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2009:1471 :

An updated elinks package that fixes two security issues is now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

ELinks is a text-based Web browser. ELinks does not display any
images, but it does support frames, tables, and most other HTML tags.

An off-by-one buffer overflow flaw was discovered in the way ELinks
handled its internal cache of string representations for HTML special
entities. A remote attacker could use this flaw to create a specially
crafted HTML file that would cause ELinks to crash or, possibly,
execute arbitrary code when rendered. (CVE-2008-7224)

It was discovered that ELinks tried to load translation files using
relative paths. A local attacker able to trick a victim into running
ELinks in a folder containing specially crafted translation files
could use this flaw to confuse the victim via incorrect translations,
or cause ELinks to crash and possibly execute arbitrary code via
embedded formatting sequences in translated messages. (CVE-2007-2027)

All ELinks users are advised to upgrade to this updated package, which
contains backported patches to resolve these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2009-October/001179.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2009-October/001181.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elinks package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(119, 134);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:elinks");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/10/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 4 / 5", "Oracle 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 ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL4", reference:"elinks-0.9.2-4.el4_8.1")) flag++;

if (rpm_check(release:"EL5", reference:"elinks-0.11.1-6.el5_4.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "elinks");
}
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-851-1.NASL
    descriptionTeemu Salmela discovered that Elinks did not properly validate input when processing smb:// URLs. If a user were tricked into viewing a malicious website and had smbclient installed, a remote attacker could execute arbitrary code with the privileges of the user invoking the program. (CVE-2006-5925) Jakub Wilk discovered a logic error in Elinks, leading to a buffer overflow. If a user were tricked into viewing a malicious website, a remote attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2008-7224). 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 seen2020-06-01
    modified2020-06-02
    plugin id42208
    published2009-10-22
    reporterUbuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/42208
    titleUbuntu 6.06 LTS : elinks vulnerabilities (USN-851-1)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-851-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(42208);
  script_version("1.12");
  script_cvs_date("Date: 2019/08/02 13:33:02");

  script_cve_id("CVE-2006-5925", "CVE-2008-7224");
  script_xref(name:"USN", value:"851-1");

  script_name(english:"Ubuntu 6.06 LTS : elinks vulnerabilities (USN-851-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Teemu Salmela discovered that Elinks did not properly validate input
when processing smb:// URLs. If a user were tricked into viewing a
malicious website and had smbclient installed, a remote attacker could
execute arbitrary code with the privileges of the user invoking the
program. (CVE-2006-5925)

Jakub Wilk discovered a logic error in Elinks, leading to a buffer
overflow. If a user were tricked into viewing a malicious website, a
remote attacker could cause a denial of service via application crash,
or possibly execute arbitrary code with the privileges of the user
invoking the program. (CVE-2008-7224).

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."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/851-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elinks and / or elinks-lite packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:elinks");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:elinks-lite");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/10/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/10/22");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(6\.06)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"6.06", pkgname:"elinks", pkgver:"0.10.6-1ubuntu3.4")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"elinks-lite", pkgver:"0.10.6-1ubuntu3.4")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "elinks / elinks-lite");
}
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2009-1471.NASL
    descriptionAn updated elinks package that fixes two security issues is now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having important security impact by the Red Hat Security Response Team. ELinks is a text-based Web browser. ELinks does not display any images, but it does support frames, tables, and most other HTML tags. An off-by-one buffer overflow flaw was discovered in the way ELinks handled its internal cache of string representations for HTML special entities. A remote attacker could use this flaw to create a specially crafted HTML file that would cause ELinks to crash or, possibly, execute arbitrary code when rendered. (CVE-2008-7224) It was discovered that ELinks tried to load translation files using relative paths. A local attacker able to trick a victim into running ELinks in a folder containing specially crafted translation files could use this flaw to confuse the victim via incorrect translations, or cause ELinks to crash and possibly execute arbitrary code via embedded formatting sequences in translated messages. (CVE-2007-2027) All ELinks users are advised to upgrade to this updated package, which contains backported patches to resolve these issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id41962
    published2009-10-02
    reporterThis script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/41962
    titleRHEL 4 / 5 : elinks (RHSA-2009:1471)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2009:1471. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(41962);
  script_version ("1.22");
  script_cvs_date("Date: 2019/10/25 13:36:14");

  script_cve_id("CVE-2007-2027", "CVE-2008-7224");
  script_xref(name:"RHSA", value:"2009:1471");

  script_name(english:"RHEL 4 / 5 : elinks (RHSA-2009:1471)");
  script_summary(english:"Checks the rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated elinks package that fixes two security issues is now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

ELinks is a text-based Web browser. ELinks does not display any
images, but it does support frames, tables, and most other HTML tags.

An off-by-one buffer overflow flaw was discovered in the way ELinks
handled its internal cache of string representations for HTML special
entities. A remote attacker could use this flaw to create a specially
crafted HTML file that would cause ELinks to crash or, possibly,
execute arbitrary code when rendered. (CVE-2008-7224)

It was discovered that ELinks tried to load translation files using
relative paths. A local attacker able to trick a victim into running
ELinks in a folder containing specially crafted translation files
could use this flaw to confuse the victim via incorrect translations,
or cause ELinks to crash and possibly execute arbitrary code via
embedded formatting sequences in translated messages. (CVE-2007-2027)

All ELinks users are advised to upgrade to this updated package, which
contains backported patches to resolve these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2007-2027"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-7224"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2009:1471"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elinks package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(119, 134);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elinks");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4.8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/10/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/10/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"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:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 4.x / 5.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-2009:1471";
  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:"RHEL4", reference:"elinks-0.9.2-4.el4_8.1")) flag++;


  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"elinks-0.11.1-6.el5_4.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"elinks-0.11.1-6.el5_4.1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"elinks-0.11.1-6.el5_4.1")) 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, "elinks");
  }
}
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20091001_ELINKS_ON_SL4_X.NASL
    descriptionCVE-2007-2027 elinks tries to load .po files from a non-absolute path CVE-2008-7224 elinks: entity_cache static array buffer overflow (off-by-one) An off-by-one buffer overflow flaw was discovered in the way ELinks handled its internal cache of string representations for HTML special entities. A remote attacker could use this flaw to create a specially crafted HTML file that would cause ELinks to crash or, possibly, execute arbitrary code when rendered. (CVE-2008-7224) It was discovered that ELinks tried to load translation files using relative paths. A local attacker able to trick a victim into running ELinks in a folder containing specially crafted translation files could use this flaw to confuse the victim via incorrect translations, or cause ELinks to crash and possibly execute arbitrary code via embedded formatting sequences in translated messages. (CVE-2007-2027)
    last seen2020-06-01
    modified2020-06-02
    plugin id60673
    published2012-08-01
    reporterThis script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/60673
    titleScientific Linux Security Update : elinks on SL4.x, SL5.x i386/x86_64
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(60673);
  script_version("1.6");
  script_cvs_date("Date: 2019/10/25 13:36:18");

  script_cve_id("CVE-2007-2027", "CVE-2008-7224");

  script_name(english:"Scientific Linux Security Update : elinks on SL4.x, SL5.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Scientific Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2007-2027 elinks tries to load .po files from a non-absolute path

CVE-2008-7224 elinks: entity_cache static array buffer overflow
(off-by-one)

An off-by-one buffer overflow flaw was discovered in the way ELinks
handled its internal cache of string representations for HTML special
entities. A remote attacker could use this flaw to create a specially
crafted HTML file that would cause ELinks to crash or, possibly,
execute arbitrary code when rendered. (CVE-2008-7224)

It was discovered that ELinks tried to load translation files using
relative paths. A local attacker able to trick a victim into running
ELinks in a folder containing specially crafted translation files
could use this flaw to confuse the victim via incorrect translations,
or cause ELinks to crash and possibly execute arbitrary code via
embedded formatting sequences in translated messages. (CVE-2007-2027)"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind0910&L=scientific-linux-errata&T=0&P=681
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8f571a19"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elinks package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(119, 134);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/10/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 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("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");
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);


flag = 0;
if (rpm_check(release:"SL4", reference:"elinks-0.9.2-4.el4_8.1")) flag++;

if (rpm_check(release:"SL5", reference:"elinks-0.11.1-6.el5_4.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2009-0030.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - fix #235411 - CVE-2007-2027 - elinks tries to load .po files from non-absolute path - fix #523258 - CVE-2008-7224 - entity_cache static array buffer overflow
    last seen2020-06-01
    modified2020-06-02
    plugin id79468
    published2014-11-26
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/79468
    titleOracleVM 2.1 : elinks (OVMSA-2009-0030)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2009-0030.
#

include("compat.inc");

if (description)
{
  script_id(79468);
  script_version("1.6");
  script_cvs_date("Date: 2019/10/25 13:36:06");

  script_cve_id("CVE-2007-2027", "CVE-2008-7224");

  script_name(english:"OracleVM 2.1 : elinks (OVMSA-2009-0030)");
  script_summary(english:"Checks the RPM output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote OracleVM host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  - fix #235411 - CVE-2007-2027 - elinks tries to load .po
    files from non-absolute path

  - fix #523258 - CVE-2008-7224 - entity_cache static array
    buffer overflow"
  );
  # https://oss.oracle.com/pipermail/oraclevm-errata/2009-October/000035.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f5e8a21e"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elinks package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(119, 134);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:elinks");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:2.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"OracleVM Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "2\.1" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 2.1", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/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, "OracleVM", cpu);

flag = 0;
if (rpm_check(release:"OVS2.1", reference:"elinks-0.11.1-6.el5_4.1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "elinks");
}
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2009-1471.NASL
    descriptionAn updated elinks package that fixes two security issues is now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having important security impact by the Red Hat Security Response Team. ELinks is a text-based Web browser. ELinks does not display any images, but it does support frames, tables, and most other HTML tags. An off-by-one buffer overflow flaw was discovered in the way ELinks handled its internal cache of string representations for HTML special entities. A remote attacker could use this flaw to create a specially crafted HTML file that would cause ELinks to crash or, possibly, execute arbitrary code when rendered. (CVE-2008-7224) It was discovered that ELinks tried to load translation files using relative paths. A local attacker able to trick a victim into running ELinks in a folder containing specially crafted translation files could use this flaw to confuse the victim via incorrect translations, or cause ELinks to crash and possibly execute arbitrary code via embedded formatting sequences in translated messages. (CVE-2007-2027) All ELinks users are advised to upgrade to this updated package, which contains backported patches to resolve these issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id43798
    published2010-01-06
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/43798
    titleCentOS 4 / 5 : elinks (CESA-2009:1471)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2009:1471 and 
# CentOS Errata and Security Advisory 2009:1471 respectively.
#

include("compat.inc");

if (description)
{
  script_id(43798);
  script_version("1.14");
  script_cvs_date("Date: 2019/10/25 13:36:05");

  script_cve_id("CVE-2007-2027", "CVE-2008-7224");
  script_xref(name:"RHSA", value:"2009:1471");

  script_name(english:"CentOS 4 / 5 : elinks (CESA-2009:1471)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated elinks package that fixes two security issues is now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

ELinks is a text-based Web browser. ELinks does not display any
images, but it does support frames, tables, and most other HTML tags.

An off-by-one buffer overflow flaw was discovered in the way ELinks
handled its internal cache of string representations for HTML special
entities. A remote attacker could use this flaw to create a specially
crafted HTML file that would cause ELinks to crash or, possibly,
execute arbitrary code when rendered. (CVE-2008-7224)

It was discovered that ELinks tried to load translation files using
relative paths. A local attacker able to trick a victim into running
ELinks in a folder containing specially crafted translation files
could use this flaw to confuse the victim via incorrect translations,
or cause ELinks to crash and possibly execute arbitrary code via
embedded formatting sequences in translated messages. (CVE-2007-2027)

All ELinks users are advised to upgrade to this updated package, which
contains backported patches to resolve these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2009-October/016177.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4d665bde"
  );
  # https://lists.centos.org/pipermail/centos-announce/2009-October/016178.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?f0eaa8e2"
  );
  # https://lists.centos.org/pipermail/centos-announce/2009-October/016224.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cee8b1e8"
  );
  # https://lists.centos.org/pipermail/centos-announce/2009-October/016225.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?01be5679"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elinks package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(119, 134);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elinks");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/10/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.x / 5.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-4", cpu:"i386", reference:"elinks-0.9.2-4.el4_8.1")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"elinks-0.9.2-4.el4_8.1")) flag++;

if (rpm_check(release:"CentOS-5", reference:"elinks-0.11.1-6.el5_4.1")) 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, "elinks");
}
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_2544F543C17811DEB175001CC0377035.NASL
    descriptionSecurityFocus reports : ELinks is prone to an off-by-one buffer-overflow vulnerability because the application fails to accurately reference the last element of a buffer. Attackers may leverage this issue to execute arbitrary code in the context of the application. Failed attacks will cause denial-of-service conditions.
    last seen2020-06-01
    modified2020-06-02
    plugin id42238
    published2009-10-26
    reporterThis script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/42238
    titleFreeBSD : elinks -- buffer overflow vulnerability (2544f543-c178-11de-b175-001cc0377035)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-1902.NASL
    descriptionJakub Wilk discovered an off-by-one buffer overflow in the charset handling of elinks, a feature-rich text-mode WWW browser, which might lead to the execution of arbitrary code if the user is tricked into opening a malformed HTML page.
    last seen2020-06-01
    modified2020-06-02
    plugin id44767
    published2010-02-24
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/44767
    titleDebian DSA-1902-1 : elinks - buffer overflow

Oval

accepted2013-04-29T04:01:59.754-04:00
classvulnerability
contributors
  • nameAharon Chernin
    organizationSCAP.com, LLC
  • nameDragos Prisaca
    organizationG2, Inc.
definition_extensions
  • commentThe operating system installed on the system is Red Hat Enterprise Linux 4
    ovaloval:org.mitre.oval:def:11831
  • commentCentOS Linux 4.x
    ovaloval:org.mitre.oval:def:16636
  • commentOracle Linux 4.x
    ovaloval:org.mitre.oval:def:15990
  • commentThe operating system installed on the system is Red Hat Enterprise Linux 5
    ovaloval:org.mitre.oval:def:11414
  • commentThe operating system installed on the system is CentOS Linux 5.x
    ovaloval:org.mitre.oval:def:15802
  • commentOracle Linux 5.x
    ovaloval:org.mitre.oval:def:15459
descriptionBuffer overflow in entity_cache in ELinks before 0.11.4rc0 allows remote attackers to cause a denial of service (crash) via a crafted link.
familyunix
idoval:org.mitre.oval:def:10126
statusaccepted
submitted2010-07-09T03:56:16-04:00
titleBuffer overflow in entity_cache in ELinks before 0.11.4rc0 allows remote attackers to cause a denial of service (crash) via a crafted link.
version27

Redhat

advisories
bugzilla
id523258
titleCVE-2008-7224 elinks: entity_cache static array buffer overflow (off-by-one)
oval
OR
  • commentRed Hat Enterprise Linux must be installed
    ovaloval:com.redhat.rhba:tst:20070304026
  • AND
    • commentRed Hat Enterprise Linux 4 is installed
      ovaloval:com.redhat.rhba:tst:20070304025
    • commentelinks is earlier than 0:0.9.2-4.el4_8.1
      ovaloval:com.redhat.rhsa:tst:20091471001
    • commentelinks is signed with Red Hat master key
      ovaloval:com.redhat.rhsa:tst:20060742002
  • AND
    • commentRed Hat Enterprise Linux 5 is installed
      ovaloval:com.redhat.rhba:tst:20070331005
    • commentelinks is earlier than 0:0.11.1-6.el5_4.1
      ovaloval:com.redhat.rhsa:tst:20091471004
    • commentelinks is signed with Red Hat redhatrelease key
      ovaloval:com.redhat.rhsa:tst:20070933005
rhsa
idRHSA-2009:1471
released2009-10-01
severityImportant
titleRHSA-2009:1471: elinks security update (Important)
rpms
  • elinks-0:0.11.1-6.el5_4.1
  • elinks-0:0.9.2-4.el4_8.1
  • elinks-debuginfo-0:0.11.1-6.el5_4.1
  • elinks-debuginfo-0:0.9.2-4.el4_8.1

References