Debian DSA-3413-1 : openssl - security update

2015-12-07T00:00:00
ID DEBIAN_DSA-3413.NASL
Type nessus
Reporter This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-06-02T00:00:00

Description

Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit. The Common Vulnerabilities and Exposures project identifies the following issues :

  • CVE-2015-3194 Loic Jonas Etienne of Qnective AG discovered that the signature verification routines will crash with a NULL pointer dereference if presented with an ASN.1 signature using the RSA PSS algorithm and absent mask generation function parameter. A remote attacker can exploit this flaw to crash any certificate verification operation and mount a denial of service attack.

  • CVE-2015-3195 Adam Langley of Google/BoringSSL discovered that OpenSSL will leak memory when presented with a malformed X509_ATTRIBUTE structure.

  • CVE-2015-3196 A race condition flaw in the handling of PSK identify hints was discovered, potentially leading to a double free of the identify hint data.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3413. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(87212);
  script_version("2.14");
  script_cvs_date("Date: 2018/11/10 11:49:37");

  script_cve_id("CVE-2015-3194", "CVE-2015-3195", "CVE-2015-3196");
  script_xref(name:"DSA", value:"3413");

  script_name(english:"Debian DSA-3413-1 : openssl - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities have been discovered in OpenSSL, a Secure
Sockets Layer toolkit. The Common Vulnerabilities and Exposures
project identifies the following issues :

  - CVE-2015-3194
    Loic Jonas Etienne of Qnective AG discovered that the
    signature verification routines will crash with a NULL
    pointer dereference if presented with an ASN.1 signature
    using the RSA PSS algorithm and absent mask generation
    function parameter. A remote attacker can exploit this
    flaw to crash any certificate verification operation and
    mount a denial of service attack.

  - CVE-2015-3195
    Adam Langley of Google/BoringSSL discovered that OpenSSL
    will leak memory when presented with a malformed
    X509_ATTRIBUTE structure.

  - CVE-2015-3196
    A race condition flaw in the handling of PSK identify
    hints was discovered, potentially leading to a double
    free of the identify hint data."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-3194"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-3195"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-3196"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/openssl"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/openssl"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2015/dsa-3413"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the openssl packages.

For the oldstable distribution (wheezy), these problems have been
fixed in version 1.0.1e-2+deb7u18.

For the stable distribution (jessie), these problems have been fixed
in version 1.0.1k-3+deb8u2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openssl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"7.0", prefix:"libssl-dev", reference:"1.0.1e-2+deb7u18")) flag++;
if (deb_check(release:"7.0", prefix:"libssl-doc", reference:"1.0.1e-2+deb7u18")) flag++;
if (deb_check(release:"7.0", prefix:"libssl1.0.0", reference:"1.0.1e-2+deb7u18")) flag++;
if (deb_check(release:"7.0", prefix:"libssl1.0.0-dbg", reference:"1.0.1e-2+deb7u18")) flag++;
if (deb_check(release:"7.0", prefix:"openssl", reference:"1.0.1e-2+deb7u18")) flag++;
if (deb_check(release:"8.0", prefix:"libcrypto1.0.0-udeb", reference:"1.0.1k-3+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libssl-dev", reference:"1.0.1k-3+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libssl-doc", reference:"1.0.1k-3+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libssl1.0.0", reference:"1.0.1k-3+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libssl1.0.0-dbg", reference:"1.0.1k-3+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"openssl", reference:"1.0.1k-3+deb8u2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");