FreeBSD Security Advisory (FreeBSD-SA-11:01.mountd.asc)

# SPDX-FileCopyrightText: 2011 E-Soft Inc.
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.69603");
  script_version("2023-07-26T05:05:09+0000");
  script_tag(name:"last_modification", value:"2023-07-26 05:05:09 +0000 (Wed, 26 Jul 2023)");
  script_tag(name:"creation_date", value:"2011-05-12 19:21:50 +0200 (Thu, 12 May 2011)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_cve_id("CVE-2011-1739");
  script_name("FreeBSD Security Advisory (FreeBSD-SA-11:01.mountd.asc)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 E-Soft Inc.");
  script_family("FreeBSD Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/freebsd", "ssh/login/freebsdpatchlevel");

  script_tag(name:"insight", value:"The mountd(8) daemon services NFS mount requests from other client
machines.  When mountd is started, it loads the export host addresses
and options into the kernel using the mount(2) system call.

While parsing the exports(5) table, a network mask in the form of

  - network=netname/prefixlength results in an incorrect network mask
being computed if the prefix length is not a multiple of 8.

For example, specifying the ACL for an export as -network 192.0.2.0/23
would result in a netmask of 255.255.127.0 being used instead of the
correct netmask of 255.255.254.0.");

  script_tag(name:"solution", value:"Upgrade your system to the appropriate stable release
  or security branch dated after the correction date.");

  script_xref(name:"URL", value:"https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-11:01.mountd.asc");

  script_tag(name:"summary", value:"The remote host is missing an update to the system
  as announced in the referenced advisory FreeBSD-SA-11:01.mountd.asc");

  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("pkg-lib-bsd.inc");

vuln = FALSE;

if(patchlevelcmp(rel:"7.3", patchlevel:"5")<0) {
  vuln = TRUE;
}
if(patchlevelcmp(rel:"7.4", patchlevel:"1")<0) {
  vuln = TRUE;
}
if(patchlevelcmp(rel:"8.1", patchlevel:"3")<0) {
  vuln = TRUE;
}
if(patchlevelcmp(rel:"8.2", patchlevel:"1")<0) {
  vuln = TRUE;
}

if(vuln) {
  security_message(port:0);
} else if (__pkg_match) {
  exit(99);
}