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nessusThis script is Copyright (C) 2008-2021 Tenable Network Security, Inc.FEDORA_2008-1783.NASL
HistoryFeb 20, 2008 - 12:00 a.m.

Fedora 8 : pcre-7.3-3.fc8 (2008-1783)

2008-02-2000:00:00
This script is Copyright (C) 2008-2021 Tenable Network Security, Inc.
www.tenable.com
11

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.655

Percentile

97.9%

This update addresses buffer overflow caused by a character class containing a very large number of characters with codepoints greater than 255 (in UTF-8 mode)

  • CVE-2008-0674, #431660 This issue may affect usages of pcre, when regular expressions from untrusted sources are compiled. Handling of untrusted data using trusted regular expressions is not affected by this problem.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 Fedora Security Advisory 2008-1783.
#

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

if (description)
{
  script_id(31124);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2008-0674");
  script_bugtraq_id(27786);
  script_xref(name:"FEDORA", value:"2008-1783");

  script_name(english:"Fedora 8 : pcre-7.3-3.fc8 (2008-1783)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update addresses buffer overflow caused by a character class
containing a very large number of characters with codepoints greater
than 255 (in UTF-8 mode)

  - CVE-2008-0674, #431660 This issue may affect usages of
    pcre, when regular expressions from untrusted sources
    are compiled. Handling of untrusted data using trusted
    regular expressions is not affected by this problem.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=431660"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2008-February/008013.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?820cca15"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected pcre package.");
  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: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_cwe_id(119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:pcre");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:8");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/02/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2021 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "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) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 8.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC8", reference:"pcre-7.3-3.fc8")) 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, "pcre");
}
VendorProductVersionCPE
fedoraprojectfedorapcrep-cpe:/a:fedoraproject:fedora:pcre
fedoraprojectfedora8cpe:/o:fedoraproject:fedora:8

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

0.655

Percentile

97.9%