Debian DLA-549-1 : ruby-eventmachine security update

2016-07-18T00:00:00
ID DEBIAN_DLA-549.NASL
Type nessus
Reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
Modified 2016-07-18T00:00:00

Description

EventMachine, a Ruby network engine could be crashed by opening a high number of parallel connections (>= 1024) towards a server using the EventMachine engine. The crash happens due to the file descriptors overwriting the stack.

For Debian 7 'Wheezy', these problems have been fixed in version 0.12.10-3+deb7u1.

We recommend that you upgrade your ruby-eventmachine 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.

                                        
                                            #%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-549-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(92324);
  script_version("2.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_name(english:"Debian DLA-549-1 : ruby-eventmachine 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:
"EventMachine, a Ruby network engine could be crashed by opening a high
number of parallel connections (>= 1024) towards a server using the
EventMachine engine. The crash happens due to the file descriptors
overwriting the stack.

For Debian 7 'Wheezy', these problems have been fixed in version
0.12.10-3+deb7u1.

We recommend that you upgrade your ruby-eventmachine 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/2016/07/msg00012.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/ruby-eventmachine"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libeventmachine-ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libeventmachine-ruby-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libeventmachine-ruby1.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ruby-eventmachine");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/07/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/18");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 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:"7.0", prefix:"libeventmachine-ruby", reference:"0.12.10-3+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libeventmachine-ruby-doc", reference:"0.12.10-3+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libeventmachine-ruby1.8", reference:"0.12.10-3+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ruby-eventmachine", reference:"0.12.10-3+deb7u1")) 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");