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nessusUbuntu Security Notice (C) 2009-2021 Canonical, Inc. / NASL script (C) 2009-2021 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-802-2.NASL
HistoryAug 20, 2009 - 12:00 a.m.

Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : apache2 regression (USN-802-2)

2009-08-2000:00:00
Ubuntu Security Notice (C) 2009-2021 Canonical, Inc. / NASL script (C) 2009-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11

USN-802-1 fixed vulnerabilities in Apache. The upstream fix for CVE-2009-1891 introduced a regression that would cause Apache children to occasionally segfault when mod_deflate is used. This update fixes the problem.

We apologize for the inconvenience.

It was discovered that mod_proxy_http did not properly handle a large amount of streamed data when used as a reverse proxy. A remote attacker could exploit this and cause a denial of service via memory resource consumption. This issue affected Ubuntu 8.04 LTS, 8.10 and 9.04. (CVE-2009-1890)

It was discovered that mod_deflate did not abort compressing large files when the connection was closed. A remote attacker could exploit this and cause a denial of service via CPU resource consumption. (CVE-2009-1891).

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.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-802-2. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(40655);
  script_version("1.22");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2009-1890", "CVE-2009-1891");
  script_xref(name:"USN", value:"802-2");

  script_name(english:"Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 : apache2 regression (USN-802-2)");
  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:
"USN-802-1 fixed vulnerabilities in Apache. The upstream fix for
CVE-2009-1891 introduced a regression that would cause Apache children
to occasionally segfault when mod_deflate is used. This update fixes
the problem.

We apologize for the inconvenience.

It was discovered that mod_proxy_http did not properly handle a large
amount of streamed data when used as a reverse proxy. A remote
attacker could exploit this and cause a denial of service via memory
resource consumption. This issue affected Ubuntu 8.04 LTS, 8.10 and
9.04. (CVE-2009-1890)

It was discovered that mod_deflate did not abort compressing
large files when the connection was closed. A remote
attacker could exploit this and cause a denial of service
via CPU resource consumption. (CVE-2009-1891).

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/802-2/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_cwe_id(189, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-event");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-perchild");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-prefork");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-worker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-prefork-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-src");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-suexec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-suexec-custom");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-threaded-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2.2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapr0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapr0-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/08/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/08/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2009-2021 Canonical, Inc. / NASL script (C) 2009-2021 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|8\.04|8\.10|9\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 8.04 / 8.10 / 9.04", "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:"apache2", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-common", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-doc", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-mpm-perchild", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-mpm-prefork", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-mpm-worker", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-prefork-dev", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-threaded-dev", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"apache2-utils", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libapr0", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libapr0-dev", pkgver:"2.0.55-4ubuntu2.8")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-doc", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-mpm-event", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-mpm-perchild", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-mpm-prefork", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-mpm-worker", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-prefork-dev", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-src", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-threaded-dev", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2-utils", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"apache2.2-common", pkgver:"2.2.8-1ubuntu0.11")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-doc", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-mpm-event", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-mpm-prefork", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-mpm-worker", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-prefork-dev", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-src", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-suexec", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-suexec-custom", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-threaded-dev", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2-utils", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"apache2.2-common", pkgver:"2.2.9-7ubuntu3.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-doc", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-mpm-event", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-mpm-prefork", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-mpm-worker", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-prefork-dev", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-src", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-suexec", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-suexec-custom", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-threaded-dev", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2-utils", pkgver:"2.2.11-2ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"apache2.2-common", pkgver:"2.2.11-2ubuntu2.3")) 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, "apache2 / apache2-common / apache2-doc / apache2-mpm-event / etc");
}
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