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Vulnerability Details : CVE-2015-0235

Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka "GHOST."
Publish Date : 2015-01-28 Last Update Date : 2017-01-02
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute CodeOverflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
DSA-3142-1 -- eglibc -- security update oval:org.mitre.oval:def:28528 unix
ELSA-2015-0090 -- glibc security update (critical) oval:org.mitre.oval:def:28638 unix
ELSA-2015-0092 -- glibc security update (critical) oval:org.mitre.oval:def:28622 unix
RHSA-2015:0090 -- glibc security update (Critical) oval:org.mitre.oval:def:28360 unix
RHSA-2015:0090: glibc security update (Critical) oval:com.redhat.rhsa:def:20150090 unix
RHSA-2015:0092 -- glibc security update (Critical) oval:org.mitre.oval:def:28438 unix
RHSA-2015:0092: glibc security update (Critical) oval:com.redhat.rhsa:def:20150092 unix
USN-2485-1 -- GNU C Library vulnerability oval:org.mitre.oval:def:28503 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2015-0235

# Product Type Vendor Product Version Update Edition Language
1 Application GNU Glibc 2.0 Version Details Vulnerabilities
2 Application GNU Glibc 2.0.1 Version Details Vulnerabilities
3 Application GNU Glibc 2.0.2 Version Details Vulnerabilities
4 Application GNU Glibc 2.0.3 Version Details Vulnerabilities
5 Application GNU Glibc 2.0.4 Version Details Vulnerabilities
6 Application GNU Glibc 2.0.5 Version Details Vulnerabilities
7 Application GNU Glibc 2.0.6 Version Details Vulnerabilities
8 Application GNU Glibc 2.1 Version Details Vulnerabilities
9 Application GNU Glibc 2.1.1 Version Details Vulnerabilities
10 Application GNU Glibc Version Details Vulnerabilities
11 Application GNU Glibc 2.1.2 Version Details Vulnerabilities
12 Application GNU Glibc 2.1.3 Version Details Vulnerabilities
13 Application GNU Glibc 2.1.9 Version Details Vulnerabilities
14 Application GNU Glibc 2.2 Version Details Vulnerabilities
15 Application GNU Glibc 2.2.1 Version Details Vulnerabilities
16 Application GNU Glibc 2.2.2 Version Details Vulnerabilities
17 Application GNU Glibc 2.2.3 Version Details Vulnerabilities
18 Application GNU Glibc 2.2.4 Version Details Vulnerabilities
19 Application GNU Glibc 2.2.5 Version Details Vulnerabilities
20 Application GNU Glibc 2.10.1 Version Details Vulnerabilities
21 Application GNU Glibc 2.11 Version Details Vulnerabilities
22 Application GNU Glibc 2.11.1 Version Details Vulnerabilities
23 Application GNU Glibc 2.11.2 Version Details Vulnerabilities
24 Application GNU Glibc 2.11.3 Version Details Vulnerabilities
25 Application GNU Glibc 2.12 Version Details Vulnerabilities
26 Application GNU Glibc 2.12.1 Version Details Vulnerabilities
27 Application GNU Glibc 2.12.2 Version Details Vulnerabilities
28 Application GNU Glibc 2.13 Version Details Vulnerabilities
29 Application GNU Glibc 2.14 Version Details Vulnerabilities
30 Application GNU Glibc 2.14.1 Version Details Vulnerabilities
31 Application GNU Glibc 2.15 Version Details Vulnerabilities
32 Application GNU Glibc 2.16 Version Details Vulnerabilities
33 Application GNU Glibc 2.17 Version Details Vulnerabilities
34 Application Oracle Communications Applications 13.1 Version Details Vulnerabilities
35 Application Oracle Oracle Pillar Axiom 6.1 Version Details Vulnerabilities
36 Application Oracle Oracle Pillar Axiom 6.2 Version Details Vulnerabilities
37 Application Oracle Oracle Pillar Axiom 6.3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
GNU Glibc 33
Oracle Communications Applications 1
Oracle Oracle Pillar Axiom 3

- References For CVE-2015-0235
BUGTRAQ 20150127 GHOST gethostbyname() heap overflow in glibc (CVE-2015-0235) CONFIRM CONFIRM
HP SSRT101953
HP SSRT101937
BID 72325 GNU glibc CVE-2015-0235 Remote Heap Buffer Overflow Vulnerability Release Date:2016-10-19 CONFIRM CONFIRM CONFIRM CONFIRM
BID 91787 Oracle July 2016 Critical Patch Update Multiple Vulnerabilities Release Date:2016-10-10 CONFIRM CONFIRM
BUGTRAQ 20150311 OpenSSL v1.0.2 for Linux affected by CVE-2015-0235 CONFIRM CONFIRM CONFIRM CONFIRM CONFIRM CONFIRM
CISCO 20150128 GNU glibc gethostbyname Function Buffer Overflow Vulnerability
REDHAT RHSA-2015:0126
FULLDISC 20150128 Qualys Security Advisory CVE-2015-0235 - GHOST: glibc gethostbyname buffer overflow CONFIRM CONFIRM CONFIRM CONFIRM CONFIRM CONFIRM CONFIRM
BUGTRAQ 20150127 Qualys Security Advisory CVE-2015-0235 - GHOST: glibc gethostbyname buffer overflow
APPLE APPLE-SA-2015-06-30-2
APPLE APPLE-SA-2015-10-21-4

- Metasploit Modules Related To CVE-2015-0235

Exim GHOST (glibc gethostbyname) Buffer Overflow
This module remotely exploits CVE-2015-0235, aka GHOST, a heap-based buffer overflow in the GNU C Library's gethostbyname functions on x86 and x86_64 GNU/Linux systems that run the Exim mail server.
Module type : exploit Rank : great Platforms : Unix
WordPress XMLRPC GHOST Vulnerability Scanner
This module can be used to determine hosts vulnerable to the GHOST vulnerability via a call to the WordPress XMLRPC interface. If the target is vulnerable, the system will segfault and return a server error. On patched systems, a normal XMLRPC error is returned.
Module type : auxiliary Rank : normal

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