Debian DLA-1088-1 : irssi security update

2017-09-05T00:00:00
ID DEBIAN_DLA-1088.NASL
Type nessus
Reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2017-09-05T00:00:00

Description

Irssi has some issues where remote attackers might be able to cause a crash.

CVE-2017-9468

In irssi, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer.

CVE-2017-9469

In irssi, when receiving certain incorrectly quoted DCC files, it tries to find the terminating quote one byte before the allocated memory.

For Debian 7

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1088-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(102926);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2017-9468", "CVE-2017-9469");

  script_name(english:"Debian DLA-1088-1 : irssi security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Irssi has some issues where remote attackers might be able to cause a
crash.

CVE-2017-9468

  In irssi, when receiving a DCC message without source nick/host,
it   attempts to dereference a NULL pointer.

CVE-2017-9469

  In irssi, when receiving certain incorrectly quoted DCC files, it
tries to   find the terminating quote one byte before the allocated
memory.

For Debian 7 'Wheezy', these problems have been fixed in version
0.8.15-5+deb7u2.

We recommend that you upgrade your irssi packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2017/09/msg00003.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/irssi"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected irssi, and irssi-dev packages."
  );
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:irssi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:irssi-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 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:"7.0", prefix:"irssi", reference:"0.8.15-5+deb7u2")) flag++;
if (deb_check(release:"7.0", prefix:"irssi-dev", reference:"0.8.15-5+deb7u2")) 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");