Debian Security Advisory DSA 4331-1 (curl - security update)

2018-11-02T00:00:00
ID OPENVAS:1361412562310704331
Type openvas
Reporter Copyright (c) 2018 Greenbone Networks GmbH http://greenbone.net
Modified 2019-07-04T00:00:00

Description

Two vulnerabilities were discovered in cURL, an URL transfer library.

CVE-2018-16839 Harry Sintonen discovered that, on systems with a 32 bit size_t, an integer overflow would be triggered when a SASL user name longer than 2GB is used. This would in turn cause a very small buffer to be allocated instead of the intended very huge one, which would trigger a heap buffer overflow when the buffer is used.

CVE-2018-16842 Brian Carpenter discovered that the logic in the curl tool to wrap error messages at 80 columns is flawed, leading to a read buffer overflow if a single word in the message is itself longer than 80 bytes.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
#
# Auto-generated from advisory DSA 4331-1 using nvtgen 1.0
# Script version: 1.0
#
# Author:
# Greenbone Networks
#
# Copyright:
# Copyright (c) 2018 Greenbone Networks GmbH http://greenbone.net
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.704331");
  script_version("2019-07-04T09:25:28+0000");
  script_cve_id("CVE-2018-16839", "CVE-2018-16842");
  script_name("Debian Security Advisory DSA 4331-1 (curl - security update)");
  script_tag(name:"last_modification", value:"2019-07-04 09:25:28 +0000 (Thu, 04 Jul 2019)");
  script_tag(name:"creation_date", value:"2018-11-02 00:00:00 +0100 (Fri, 02 Nov 2018)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  script_xref(name:"URL", value:"https://www.debian.org/security/2018/dsa-4331.html");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (c) 2018 Greenbone Networks GmbH http://greenbone.net");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB9");
  script_tag(name:"affected", value:"curl on Debian Linux");
  script_tag(name:"solution", value:"For the stable distribution (stretch), these problems have been fixed in
version 7.52.1-5+deb9u8.

We recommend that you upgrade your curl packages.");

  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/curl");
  script_tag(name:"summary", value:"Two vulnerabilities were discovered in cURL, an URL transfer library.

CVE-2018-16839
Harry Sintonen discovered that, on systems with a 32 bit size_t, an
integer overflow would be triggered when a SASL user name longer
than 2GB is used. This would in turn cause a very small buffer to be
allocated instead of the intended very huge one, which would trigger
a heap buffer overflow when the buffer is used.

CVE-2018-16842
Brian Carpenter discovered that the logic in the curl tool to wrap
error messages at 80 columns is flawed, leading to a read buffer
overflow if a single word in the message is itself longer than 80
bytes.");
  script_tag(name:"vuldetect", value:"This check tests the installed software version using the apt package manager.");

  exit(0);
}

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

res = "";
report = "";
if(!isnull(res = isdpkgvuln(pkg:"curl", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl3", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl3-dbg", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl3-gnutls", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl3-nss", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl4-doc", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl4-gnutls-dev", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl4-nss-dev", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcurl4-openssl-dev", ver:"7.52.1-5+deb9u8", rls:"DEB9"))) {
  report += res;
}

if(report != "") {
  security_message(data:report);
} else if(__pkg_match) {
  exit(99);
}