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RedHat Update for openssl RHSA-2016:0301-01

🗓️ 02 Mar 2016 00:00:00Reported by Copyright (C) 2016 Greenbone AGType 
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The update addresses multiple security vulnerabilities in OpenSSL including a padding oracle flaw, SSLv2 cipher negotiation flaw, side-channel attack, double-free flaw, and an integer overflow flaw

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# SPDX-FileCopyrightText: 2016 Greenbone AG
# 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("1.3.6.1.4.1.25623.1.0.871564");
  script_version("2024-03-21T05:06:54+0000");
  script_tag(name:"last_modification", value:"2024-03-21 05:06:54 +0000 (Thu, 21 Mar 2024)");
  script_tag(name:"creation_date", value:"2016-03-02 06:16:55 +0100 (Wed, 02 Mar 2016)");
  script_cve_id("CVE-2015-3197", "CVE-2016-0702", "CVE-2016-0705", "CVE-2016-0797", "CVE-2016-0800");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-02-20 16:59:00 +0000 (Wed, 20 Feb 2019)");
  script_tag(name:"qod_type", value:"package");
  script_name("RedHat Update for openssl RHSA-2016:0301-01");
  script_tag(name:"summary", value:"The remote host is missing an update for the 'openssl'
  package(s) announced via the referenced advisory.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"OpenSSL is a toolkit that implements the
  Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols,
  as well as a full-strength, general purpose cryptography library.

  A padding oracle flaw was found in the Secure Sockets Layer version 2.0
  (SSLv2) protocol. An attacker can potentially use this flaw to decrypt
  RSA-encrypted cipher text from a connection using a newer SSL/TLS protocol
  version, allowing them to decrypt such connections. This cross-protocol
  attack is publicly referred to as DROWN. (CVE-2016-0800)

  Note: This issue was addressed by disabling the SSLv2 protocol by default
  when using the 'SSLv23' connection methods, and removing support for weak
  SSLv2 cipher suites. For more information, refer to the knowledge base
  article linked to in the References section.

  A flaw was found in the way malicious SSLv2 clients could negotiate SSLv2
  ciphers that have been disabled on the server. This could result in weak
  SSLv2 ciphers being used for SSLv2 connections, making them vulnerable to
  man-in-the-middle attacks. (CVE-2015-3197)

  A side-channel attack was found that makes use of cache-bank conflicts on
  the Intel Sandy-Bridge microarchitecture. An attacker who has the ability
  to control code in a thread running on the same hyper-threaded core as the
  victim's thread that is performing decryption, could use this flaw to
  recover RSA private keys. (CVE-2016-0702)

  A double-free flaw was found in the way OpenSSL parsed certain malformed
  DSA (Digital Signature Algorithm) private keys. An attacker could create
  specially crafted DSA private keys that, when processed by an application
  compiled against OpenSSL, could cause the application to crash.
  (CVE-2016-0705)

  An integer overflow flaw, leading to a NULL pointer dereference or a
  heap-based memory corruption, was found in the way some BIGNUM functions of
  OpenSSL were implemented. Applications that use these functions with large
  untrusted input could crash or, potentially, execute arbitrary code.
  (CVE-2016-0797)

  Red Hat would like to thank the OpenSSL project for reporting these issues.
  Upstream acknowledges Nimrod Aviram and Sebastian Schinzel as the original
  reporters of CVE-2016-0800 and CVE-2015-3197  Adam Langley
  (Google/BoringSSL) as the original reporter of CVE-2016-0705  Yuval Yarom
  (University of Adelaide and NICTA), Daniel Genkin (Technion and Tel Aviv
  University), Nadia Heninger (University of Pennsylvania) as the original
  reporters of CVE-2016-0702  and Guido Vr ...

  Description truncated, please see the referenced URL(s) for more information.");
  script_tag(name:"affected", value:"openssl on Red Hat Enterprise Linux Desktop (v. 6),
  Red Hat Enterprise Linux Server (v. 6),
  Red Hat Enterprise Linux Server (v. 7),
  Red Hat Enterprise Linux Workstation (v. 6)");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"RHSA", value:"2016:0301-01");
  script_xref(name:"URL", value:"https://www.redhat.com/archives/rhsa-announce/2016-March/msg00002.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms", re:"ssh/login/release=RHENT_(7|6)");

  exit(0);
}

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

release = rpm_get_ssh_release();
if(!release) exit(0);

res = "";

if(release == "RHENT_7")
{

  if ((res = isrpmvuln(pkg:"openssl", rpm:"openssl~1.0.1e~51.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-debuginfo", rpm:"openssl-debuginfo~1.0.1e~51.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-devel", rpm:"openssl-devel~1.0.1e~51.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-libs", rpm:"openssl-libs~1.0.1e~51.el7_2.4", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}


if(release == "RHENT_6")
{

  if ((res = isrpmvuln(pkg:"openssl", rpm:"openssl~1.0.1e~42.el6_7.4", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-debuginfo", rpm:"openssl-debuginfo~1.0.1e~42.el6_7.4", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-devel", rpm:"openssl-devel~1.0.1e~42.el6_7.4", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}

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02 Mar 2016 00:00Current
8.4High risk
Vulners AI Score8.4
CVSS210
CVSS39.8
EPSS0.935
27
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