FreeBSD Ports: py-pycrypto

# SPDX-FileCopyrightText: 2012 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("1.3.6.1.4.1.25623.1.0.71534");
  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-2012-2417");
  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:"2012-08-10 03:22:17 -0400 (Fri, 10 Aug 2012)");
  script_name("FreeBSD Ports: py-pycrypto");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2012 E-Soft Inc.");
  script_family("FreeBSD Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/freebsd", "ssh/login/freebsdrel");

  script_tag(name:"insight", value:"The following package is affected: py-pycrypto

CVE-2012-2417
PyCrypto before 2.6 does not produce appropriate prime numbers when
using an ElGamal scheme to generate a key, which reduces the signature
space or public key space and makes it easier for attackers to conduct
brute force attacks to obtain the private key.");

  script_tag(name:"solution", value:"Update your system with the appropriate patches or
  software upgrades.");

  script_xref(name:"URL", value:"http://lists.dlitz.net/pipermail/pycrypto/2012q2/000587.html");
  script_xref(name:"URL", value:"https://bugs.launchpad.net/pycrypto/+bug/985164");
  script_xref(name:"URL", value:"http://www.vuxml.org/freebsd/f45c0049-be72-11e1-a284-0023ae8e59f0.html");

  script_tag(name:"summary", value:"The remote host is missing an update to the system
  as announced in the referenced advisory.");

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

  exit(0);
}

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

vuln = FALSE;
txt = "";

bver = portver(pkg:"py-pycrypto");
if(!isnull(bver) && revcomp(a:bver, b:"2.5")>=0 && revcomp(a:bver, b:"2.6")<0) {
  txt += "Package py-pycrypto version " + bver + " is installed which is known to be vulnerable.\n";
  vuln = TRUE;
}

if(vuln) {
  security_message(data:txt);
} else if (__pkg_match) {
  exit(99);
}