RHEL 2.1 / 3 : imap (RHSA-2005:850)

2005-12-07T00:00:00
ID REDHAT-RHSA-2005-850.NASL
Type nessus
Reporter Tenable
Modified 2018-11-15T00:00:00

Description

An updated imap package that fixes a buffer overflow issue is now available.

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

The imap package provides server daemons for both the IMAP (Internet Message Access Protocol) and POP (Post Office Protocol) mail access protocols.

A buffer overflow flaw was discovered in the way the c-client library parses user-supplied mailboxes. If an authenticated user requests a specially crafted mailbox name, it may be possible to execute arbitrary code on a server that uses the library. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-2933 to this issue.

All users of imap 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-2005:850. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(20270);
  script_version ("1.21");
  script_cvs_date("Date: 2018/11/15 11:40:30");

  script_cve_id("CVE-2005-2933");
  script_bugtraq_id(15009);
  script_xref(name:"RHSA", value:"2005:850");

  script_name(english:"RHEL 2.1 / 3 : imap (RHSA-2005:850)");
  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:
"An updated imap package that fixes a buffer overflow issue is now
available.

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

The imap package provides server daemons for both the IMAP (Internet
Message Access Protocol) and POP (Post Office Protocol) mail access
protocols.

A buffer overflow flaw was discovered in the way the c-client library
parses user-supplied mailboxes. If an authenticated user requests a
specially crafted mailbox name, it may be possible to execute
arbitrary code on a server that uses the library. The Common
Vulnerabilities and Exposures project has assigned the name
CVE-2005-2933 to this issue.

All users of imap 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://access.redhat.com/security/cve/cve-2005-2933"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2005:850"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected imap, imap-devel and / or imap-utils packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:imap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:imap-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/12/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/12/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2018 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 = 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:"^(2\.1|3)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.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-2005:850";
  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:"RHEL2.1", cpu:"i386", reference:"imap-2001a-19")) flag++;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"imap-devel-2001a-19")) flag++;

  if (rpm_check(release:"RHEL3", reference:"imap-2002d-12")) flag++;
  if (rpm_check(release:"RHEL3", reference:"imap-devel-2002d-12")) flag++;
  if (rpm_check(release:"RHEL3", reference:"imap-utils-2002d-12")) 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, "imap / imap-devel / imap-utils");
  }
}