Debian DSA-157-1 : irssi-text - denial of service

2004-09-29T00:00:00
ID DEBIAN_DSA-157.NASL
Type nessus
Reporter Tenable
Modified 2018-07-20T00:00:00

Description

The IRC client irssi is vulnerable to a denial of service condition. The problem occurs when a user attempts to join a channel that has an overly long topic description. When a certain string is appended to the topic, irssi will crash.

                                        
                                            #%NASL_MIN_LEVEL 70103

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-157. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(14994);
  script_version("1.17");
  script_cvs_date("Date: 2018/07/20  2:17:10");

  script_cve_id("CVE-2002-0983");
  script_bugtraq_id(5055);
  script_xref(name:"DSA", value:"157");

  script_name(english:"Debian DSA-157-1 : irssi-text - denial of service");
  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:
"The IRC client irssi is vulnerable to a denial of service condition.
The problem occurs when a user attempts to join a channel that has an
overly long topic description. When a certain string is appended to
the topic, irssi will crash."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2002/dsa-157"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the irssi-text package.

This problem has been fixed in version 0.8.4-3.1 for the current
stable distribution (woody) and in version 0.8.5-2 for the unstable
distribution (sid). The old stable distribution (potato) is not
affected, since the corresponding portions of code are not present.
The same applies to irssi-gnome and irssi-gtk, which don't seem to be
affected as well."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:irssi-text");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2002/08/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2018 Tenable Network Security, Inc.");
  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:"3.0", prefix:"irssi-text", reference:"0.8.4-3.1")) flag++;

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