Debian DSA-276-1 : linux-kernel-s390 - local privilege escalation

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-276. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(15113);
  script_version("1.20");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2003-0127");
  script_bugtraq_id(7112);
  script_xref(name:"DSA", value:"276");

  script_name(english:"Debian DSA-276-1 : linux-kernel-s390 - local privilege escalation");
  script_summary(english:"Checks dpkg output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The kernel module loader in Linux 2.2 and Linux 2.4 kernels has a flaw
in ptrace. This hole allows local users to obtain root privileges by
using ptrace to attach to a child process that is spawned by the
kernel. Remote exploitation of this hole is not possible.

This advisory only covers kernel packages for the S/390 architecture.
Other architectures will be covered by separate advisories."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2003/dsa-276"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the kernel-images packages immediately.

For the stable distribution (woody) this problem has been fixed in the
following versions :

  - kernel-patch-2.4.17-s390: version
    0.0.20020816-0.woody.1.1
  - kernel-image-2.4.17-s390: version 2.4.17-2.woody.2.2

The old stable distribution (potato) is not affected by this problem
for this architecture since s390 was first released with Debian
GNU/Linux 3.0 (woody)."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kernel-image-2.4.17-s390");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kernel-patch-2.4.17-s390");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2003/04/03");
  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) 2004-2021 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:"kernel-headers-2.4.17", reference:"2.4.17-2.woody.2.2")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-image-2.4.17-s390", reference:"2.4.17-2.woody.2.2")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-patch-2.4.17-s390", reference:"0.0.20020816-0.woody.1.1")) 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");