RHEL 4 : alsa-lib (RHSA-2005:033)

2005-02-22T00:00:00
ID REDHAT-RHSA-2005-033.NASL
Type nessus
Reporter Tenable
Modified 2018-11-15T00:00:00

Description

An updated alsa-lib package that fixes a flaw that disabled stack execution protection is now available for Red Hat Enterprise Linux 4.

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

The alsa-lib package provides a library of functions for communication with kernel sound drivers.

A flaw in the alsa mixer code was discovered that caused stack execution protection to be disabled for the libasound.so library. The effect of this flaw is that stack execution protection, through NX or Exec-Shield, would be disabled for any application linked to libasound. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0087 to this issue

Users are advised to upgrade to this updated package, which contains a patched version of the library which correctly enables stack execution protection.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2005:033. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(17167);
  script_version ("1.23");
  script_cvs_date("Date: 2018/11/15 11:40:29");

  script_cve_id("CVE-2005-0087");
  script_xref(name:"RHSA", value:"2005:033");

  script_name(english:"RHEL 4 : alsa-lib (RHSA-2005:033)");
  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 alsa-lib package that fixes a flaw that disabled stack
execution protection is now available for Red Hat Enterprise Linux 4.

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

The alsa-lib package provides a library of functions for communication
with kernel sound drivers.

A flaw in the alsa mixer code was discovered that caused stack
execution protection to be disabled for the libasound.so library. The
effect of this flaw is that stack execution protection, through NX or
Exec-Shield, would be disabled for any application linked to
libasound. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2005-0087 to this issue

Users are advised to upgrade to this updated package, which contains a
patched version of the library which correctly enables stack execution
protection."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0087"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2005:033"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected alsa-lib and / or alsa-lib-devel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/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:redhat:enterprise_linux:alsa-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:alsa-lib-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/02/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/22");
  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:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 4.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-2005:033";
  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:"alsa-lib-1.0.6-5.RHEL4")) flag++;
  if (rpm_check(release:"RHEL4", reference:"alsa-lib-devel-1.0.6-5.RHEL4")) 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, "alsa-lib / alsa-lib-devel");
  }
}