GNU C Library up to 2.17 __nss_hostname_digits_dots memory corruption ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU C Library. It has been classified as critical. This affects the function __nss_hostname_digits_dots. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2015-0235. Moreover, an exploit is present. There is ongoing doubt regarding the real existence of this vulnerability. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in GNU C Library (Software Library). It has been declared as critical. Affected by this vulnerability is the function __nss_hostname_digits_dots. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 01/27/2015 with Qualys as confirmed advisory (Website). The advisory is shared at gnu.org. This vulnerability is known as CVE-2015-0235 since 11/18/2014. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed in Ruby. It is possible to download the exploit at securityfocus.com. It is declared as highly functional. The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 81136 (openSUSE Security Update : glibc (openSUSE-SU-2015:0184-1) (GHOST)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124172 (Apple Mac OS X v10.11.1 Not Installed (APPLE-SA-2015-10-21-4)).

Upgrading to version 2.18 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (100386), Exploit-DB (35951), Tenable (81136), SecurityFocus (BID 72325†) and Secunia (SA62517†). The entries VDB-74877, VDB-74936, VDB-78625 and VDB-78672 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍
Download: 🔍

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Nessus ID: 81136
Nessus Name: openSUSE Security Update : glibc (openSUSE-SU-2015:0184-1) (GHOST)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 14258
OpenVAS Name: RedHat Update for glibc RHSA-2015:0092-01
OpenVAS File: 🔍
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Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: wordpress_ghost_scanner.rb
MetaSploit Name: Symantec Web Gateway Login Utility
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Upgrade: C Library 2.18
Suricata ID: 2020325
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Timelineinfo

11/18/2014 🔍
01/27/2015 +70 days 🔍
01/27/2015 +0 days 🔍
01/27/2015 +0 days 🔍
01/28/2015 +1 days 🔍
01/28/2015 +0 days 🔍
01/28/2015 +0 days 🔍
02/02/2015 +5 days 🔍
02/03/2015 +1 days 🔍
10/13/2024 +3539 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: ssa-994726
Organization: Qualys
Status: Confirmed
Confirmation: 🔍
Disputed: 🔍

CVE: CVE-2015-0235 (🔍)
GCVE (CVE): GCVE-0-2015-0235
GCVE (VulDB): GCVE-100-68857

OVAL: 🔍

X-Force: 100386 - GNU glibc gethostbyname buffer overflow, High Risk
SecurityFocus: 72325 - GNU glibc CVE-2015-0235 Remote Heap Buffer Overflow Vulnerability
Secunia: 62517 - McAfee Multiple Products GNU C Library Buffer Overflow Vulnerability, Highly Critical
SecurityTracker: 1031639

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/28/2015 09:04
Updated: 10/13/2024 01:04
Changes: 01/28/2015 09:04 (93), 05/02/2019 20:38 (7), 03/07/2022 07:42 (4), 03/07/2022 07:49 (1), 10/13/2024 01:04 (14)
Complete: 🔍
Cache ID: 216:6CE:103

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