RHEL 4 / 5 : libexif (RHSA-2007:0501)

2007-06-18T00:00:00
ID REDHAT-RHSA-2007-0501.NASL
Type nessus
Reporter Tenable
Modified 2016-12-29T00:00:00

Description

Updated libexif packages that fix an integer overflow flaw are now available for Red Hat Enterprise Linux 4 and 5.

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

The libexif package contains the EXIF library. Applications use this library to parse EXIF image files.

An integer overflow flaw was found in the way libexif parses EXIF image tags. If a victim opens a carefully crafted EXIF image file it could cause the application linked against libexif to execute arbitrary code or crash. (CVE-2007-4168)

Users of libexif should upgrade to these updated packages, which contain a backported patch and are not vulnerable to this issue.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2007:0501. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(25540);
  script_version ("$Revision: 1.21 $");
  script_cvs_date("$Date: 2016/12/29 15:45:03 $");

  script_cve_id("CVE-2006-4168");
  script_bugtraq_id(24461);
  script_osvdb_id(35379);
  script_xref(name:"RHSA", value:"2007:0501");

  script_name(english:"RHEL 4 / 5 : libexif (RHSA-2007:0501)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated libexif packages that fix an integer overflow flaw are now
available for Red Hat Enterprise Linux 4 and 5.

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

The libexif package contains the EXIF library. Applications use this
library to parse EXIF image files.

An integer overflow flaw was found in the way libexif parses EXIF
image tags. If a victim opens a carefully crafted EXIF image file it
could cause the application linked against libexif to execute
arbitrary code or crash. (CVE-2007-4168)

Users of libexif should upgrade to these updated packages, which
contain a backported patch and are not vulnerable to this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.redhat.com/security/data/cve/CVE-2006-4168.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://rhn.redhat.com/errata/RHSA-2007-0501.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libexif and / or libexif-devel 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:ND/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libexif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libexif-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4.5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/06/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/06/18");
  script_set_attribute(attribute:"vuln_publication_date", value:"2007/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2016 Tenable Network Security, Inc.");
  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 = eregmatch(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 (! ereg(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-2007:0501";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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:"libexif-0.5.12-5.1.0.2")) flag++;

  if (rpm_check(release:"RHEL4", reference:"libexif-devel-0.5.12-5.1.0.2")) flag++;


  if (rpm_check(release:"RHEL5", reference:"libexif-0.6.13-4.0.2.el5")) flag++;

  if (rpm_check(release:"RHEL5", reference:"libexif-devel-0.6.13-4.0.2.el5")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, "libexif / libexif-devel");
  }
}