Debian DSA-514-1 : kernel-image-sparc-2.2 - failing function and TLB flush

#%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-514. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(15351);
  script_version("1.25");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2004-0077");
  script_bugtraq_id(9686);
  script_xref(name:"CERT", value:"981222");
  script_xref(name:"DSA", value:"514");

  script_name(english:"Debian DSA-514-1 : kernel-image-sparc-2.2 - failing function and TLB flush");
  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:
"Paul Starzetz and Wojciech Purczynski of isec.pl discovered a critical
security vulnerability in the memory management code of Linux inside
the mremap(2) system call. Due to flushing the TLB (Translation
Lookaside Buffer, an address cache) too early it is possible for an
attacker to trigger a local root exploit.

The attack vectors for 2.4.x and 2.2.x kernels are exclusive for the
respective kernel series, though. We formerly believed that the
exploitable vulnerability in 2.4.x does not exist in 2.2.x which is
still true. However, it turned out that a second (sort of)
vulnerability is indeed exploitable in 2.2.x, but not in 2.4.x, with a
different exploit, of course."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2004/dsa-514"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the Linux kernel package.

For the stable distribution (woody) these problems have been fixed in
version 9woody1 of Linux 2.2 kernel images for the sparc architecture
and in version 2.2.20-5woody3 of Linux 2.2.20 source.

This problem has been fixed for other architectures already."
  );
  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-sparc-2.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kernel-source-2.2.20");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/06/04");
  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-doc-2.2.20", reference:"2.2.20-5woody3")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-headers-2.2.20-sparc", reference:"9woody1")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-image-2.2.20-sun4cdm", reference:"9woody1")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-image-2.2.20-sun4dm-smp", reference:"9woody1")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-image-2.2.20-sun4u", reference:"9woody1")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-image-2.2.20-sun4u-smp", reference:"9woody1")) flag++;
if (deb_check(release:"3.0", prefix:"kernel-source-2.2.20", reference:"2.2.20-5woody3")) 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");