Vulnerabilities > CVE-2007-3791 - Remote Buffer Overflow vulnerability in policyd W_Read Function

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
policyd
nessus

Summary

Buffer overflow in the w_read function in sockets.c in Cami Sardinha and Nigel Kukard policyd before 1.81 for Postfix allows remote attackers to cause a denial of service and possibly execute arbitrary code via long SMTP commands. NOTE: some of these details are obtained from third party information.

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DSA-1361.NASL
descriptionIt was discovered that postfix-policyd, an anti-spam plugin for postfix, didn
last seen2020-06-01
modified2020-06-02
plugin id25961
published2007-09-03
reporterThis script is Copyright (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/25961
titleDebian DSA-1361-1 : postfix-policyd - buffer overflow
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-1361. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(25961);
  script_version("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:20");

  script_cve_id("CVE-2007-3791");
  script_xref(name:"DSA", value:"1361");

  script_name(english:"Debian DSA-1361-1 : postfix-policyd - buffer overflow");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that postfix-policyd, an anti-spam plugin for
postfix, didn't correctly test lengths of incoming SMTP commands
potentially allowing the remote execution of arbitrary code."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2007/dsa-1361"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the postfix-policyd package.

For the old stable distribution (sarge), this package was not present.

For the stable distribution (etch), this problem has been fixed in
version 1.80-2.1etch1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/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:debian:debian_linux:postfix-policyd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:4.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/08/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/09/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"4.0", prefix:"postfix-policyd", reference:"1.80-2.1etch1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");