ID CVE-2014-0160
Summary The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remote attackers to obtain sensitive information from process memory via crafted packets that trigger a buffer over-read, as demonstrated by reading private keys, related to d1_both.c and t1_lib.c, aka the Heartbleed bug.
References
Vulnerable Configurations
  • OpenSSL Project OpenSSL 1.0.1
    cpe:2.3:a:openssl:openssl:1.0.1
  • OpenSSL Project OpenSSL 1.0.1 Beta1
    cpe:2.3:a:openssl:openssl:1.0.1:beta1
  • OpenSSL Project OpenSSL 1.0.1 Beta2
    cpe:2.3:a:openssl:openssl:1.0.1:beta2
  • OpenSSL Project OpenSSL 1.0.1 Beta3
    cpe:2.3:a:openssl:openssl:1.0.1:beta3
  • OpenSSL Project OpenSSL 1.0.1a
    cpe:2.3:a:openssl:openssl:1.0.1a
  • OpenSSL Project OpenSSL 1.0.1b
    cpe:2.3:a:openssl:openssl:1.0.1b
  • OpenSSL Project OpenSSL 1.0.1c
    cpe:2.3:a:openssl:openssl:1.0.1c
  • OpenSSL Project OpenSSL 1.0.1d
    cpe:2.3:a:openssl:openssl:1.0.1d
  • OpenSSL Project OpenSSL 1.0.1e
    cpe:2.3:a:openssl:openssl:1.0.1e
  • OpenSSL Project OpenSSL 1.0.1f
    cpe:2.3:a:openssl:openssl:1.0.1f
  • OpenSSL Project OpenSSL 1.0.2-beta1
    cpe:2.3:a:openssl:openssl:1.0.2:beta1
CVSS
Base: 5.0 (as of 21-10-2015 - 10:03)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
exploit-db via4
  • author Jared Stafford
    date 2014-04-08
    description OpenSSL TLS Heartbeat Extension - ''Heartbleed' Memory Disclosure
    file platforms/multiple/remote/32745.py
    id 32745
    platform multiple
    port 443
    type remote
  • author Fitzl Csaba
    date 2014-04-09
    description OpenSSL 1.0.1f TLS Heartbeat Extension - 'Heartbleed' Memory Disclosure (Multiple SSL/TLS Versions)
    file platforms/multiple/remote/32764.py
    id 32764
    platform multiple
    port 443
    type remote
redhat via4
advisories
  • bugzilla
    id 1084875
    title CVE-2014-0160 openssl: information disclosure in handling of TLS heartbeat extension packets
    oval
    AND
    • OR
      • comment Red Hat Enterprise Linux 6 Client is installed
        oval oval:com.redhat.rhsa:tst:20100842001
      • comment Red Hat Enterprise Linux 6 Server is installed
        oval oval:com.redhat.rhsa:tst:20100842002
      • comment Red Hat Enterprise Linux 6 Workstation is installed
        oval oval:com.redhat.rhsa:tst:20100842003
      • comment Red Hat Enterprise Linux 6 ComputeNode is installed
        oval oval:com.redhat.rhsa:tst:20100842004
    • OR
      • AND
        • comment openssl-devel is earlier than 0:1.0.1e-16.el6_5.7
          oval oval:com.redhat.rhsa:tst:20140376007
        • comment openssl-devel is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100888012
      • AND
        • comment openssl is earlier than 0:1.0.1e-16.el6_5.7
          oval oval:com.redhat.rhsa:tst:20140376005
        • comment openssl is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100888006
      • AND
        • comment openssl-static is earlier than 0:1.0.1e-16.el6_5.7
          oval oval:com.redhat.rhsa:tst:20140376011
        • comment openssl-static is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100888010
      • AND
        • comment openssl-perl is earlier than 0:1.0.1e-16.el6_5.7
          oval oval:com.redhat.rhsa:tst:20140376009
        • comment openssl-perl is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20100888008
    rhsa
    id RHSA-2014:0376
    released 2014-04-08
    severity Important
    title RHSA-2014:0376: openssl security update (Important)
  • rhsa
    id RHSA-2014:0377
  • rhsa
    id RHSA-2014:0378
  • rhsa
    id RHSA-2014:0396
rpms
  • openssl-devel-0:1.0.1e-16.el6_5.7
  • openssl-0:1.0.1e-16.el6_5.7
  • openssl-static-0:1.0.1e-16.el6_5.7
  • openssl-perl-0:1.0.1e-16.el6_5.7
refmap via4
bid 66690
bugtraq 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities
cert TA14-098A
cert-vn VU#720951
cisco 20140409 OpenSSL Heartbeat Extension Vulnerability in Multiple Cisco Products
confirm
debian DSA-2896
fedora
  • FEDORA-2014-4879
  • FEDORA-2014-4910
  • FEDORA-2014-9308
fulldisc
  • 20140408 Re: heartbleed OpenSSL bug CVE-2014-0160
  • 20140408 heartbleed OpenSSL bug CVE-2014-0160
  • 20140409 Re: heartbleed OpenSSL bug CVE-2014-0160
  • 20140411 MRI Rubies may contain statically linked, vulnerable OpenSSL
  • 20140412 Re: heartbleed OpenSSL bug CVE-2014-0160
  • 20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities
hp
  • HPSBGN03008
  • HPSBGN03010
  • HPSBGN03011
  • HPSBHF03021
  • HPSBHF03136
  • HPSBHF03293
  • HPSBMU02994
  • HPSBMU02995
  • HPSBMU02997
  • HPSBMU02998
  • HPSBMU02999
  • HPSBMU03009
  • HPSBMU03012
  • HPSBMU03013
  • HPSBMU03017
  • HPSBMU03018
  • HPSBMU03019
  • HPSBMU03020
  • HPSBMU03022
  • HPSBMU03023
  • HPSBMU03024
  • HPSBMU03025
  • HPSBMU03028
  • HPSBMU03029
  • HPSBMU03030
  • HPSBMU03032
  • HPSBMU03033
  • HPSBMU03037
  • HPSBMU03040
  • HPSBMU03044
  • HPSBMU03062
  • HPSBPI03014
  • HPSBPI03031
  • HPSBST03000
  • HPSBST03001
  • HPSBST03004
  • HPSBST03015
  • HPSBST03016
  • HPSBST03027
  • SSRT101846
mandriva MDVSA-2015:062
misc
mlist [syslog-ng-announce] 20140411 syslog-ng Premium Edition 5 LTS (5.0.4a) has been released
sectrack
  • 1030026
  • 1030074
  • 1030077
  • 1030078
  • 1030079
  • 1030080
  • 1030081
  • 1030082
secunia
  • 57347
  • 57483
  • 57721
  • 57836
  • 57966
  • 57968
  • 59139
  • 59243
  • 59347
suse
  • SUSE-SA:2014:002
  • openSUSE-SU-2014:0492
vmware via4
description The OpenSSL library is updated to version openssl-1.0.1g to resolve multiple security issues. * Deploy the VMware product update or product patches * Replace certificates per the product-specific documentation * Reset passwords per the product-specific documentation
id VMSA-2014-0004
last_updated 2014-04-22T00:00:00
published 2014-04-14T00:00:00
title Information Disclosure vulnerability in OpenSSL third party library
workaround None
Last major update 06-01-2017 - 21:59
Published 07-04-2014 - 18:55
Last modified 14-11-2017 - 21:29
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