Vulnerabilities > CVE-2007-4643 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Doomsday

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
doomsday
CWE-119
nessus
NVD
Published: 2007-08-31
Updated: 2018-10-15

Summary

Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via a PKT_CHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the Sv_HandlePacket function in sv_main.c.

Vulnerable Configurations

Part Description Count
Application
Doomsday
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyGentoo Local Security Checks
NASL idGENTOO_GLSA-200802-02.NASL
descriptionThe remote host is affected by the vulnerability described in GLSA-200802-02 (Doomsday: Multiple vulnerabilities) Luigi Auriemma discovered multiple buffer overflows in the D_NetPlayerEvent() function, the Msg_Write() function and the NetSv_ReadCommands() function. He also discovered errors when handling chat messages that are not NULL-terminated (CVE-2007-4642) or contain a short data length, triggering an integer underflow (CVE-2007-4643). Furthermore a format string vulnerability was discovered in the Cl_GetPackets() function when processing PSV_CONSOLE_TEXT messages (CVE-2007-4644). Impact : A remote attacker could exploit these vulnerabilities to execute arbitrary code with the rights of the user running the Doomsday server or cause a Denial of Service by sending specially crafted messages to the server. Workaround : There is no known workaround at this time.
last seen2020-06-01
modified2020-06-02
plugin id30244
published2008-02-11
reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/30244
titleGLSA-200802-02 : Doomsday: Multiple vulnerabilities
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200802-02.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(30244);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:32:44");

  script_cve_id("CVE-2007-4642", "CVE-2007-4643", "CVE-2007-4644");
  script_xref(name:"GLSA", value:"200802-02");

  script_name(english:"GLSA-200802-02 : Doomsday: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200802-02
(Doomsday: Multiple vulnerabilities)

    Luigi Auriemma discovered multiple buffer overflows in the
    D_NetPlayerEvent() function, the Msg_Write() function and the
    NetSv_ReadCommands() function. He also discovered errors when handling
    chat messages that are not NULL-terminated (CVE-2007-4642) or contain a
    short data length, triggering an integer underflow (CVE-2007-4643).
    Furthermore a format string vulnerability was discovered in the
    Cl_GetPackets() function when processing PSV_CONSOLE_TEXT messages
    (CVE-2007-4644).
  
Impact :

    A remote attacker could exploit these vulnerabilities to execute
    arbitrary code with the rights of the user running the Doomsday server
    or cause a Denial of Service by sending specially crafted messages to
    the server.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200802-02"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"While some of these issues could be resolved in
    'games-fps/doomsday-1.9.0-beta5.2', the format string vulnerability
    (CVE-2007-4644) remains unfixed. We recommend that users unmerge
    Doomsday:
    # emerge --unmerge games-fps/doomsday"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(94, 119);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:doomsday");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2008/02/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/02/11");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"games-fps/doomsday", unaffected:make_list(), vulnerable:make_list("le 1.9.0_beta52"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Doomsday");
}

References