IBM AIX 3.2/4.1/4.2 DNS Hostname gethostbyname memory corruption

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9.0$0-$5k0.00

A vulnerability was found in IBM AIX 3.2/4.1/4.2 (Operating System). It has been declared as very critical. This vulnerability affects the function gethostbyname of the component DNS Hostname Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered . The weakness was released 12/10/1996 as H-13 as not defined advisory (CIAC). The advisory is available at ciac.llnl.gov. This vulnerability was named CVE-1999-0101. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/12/2019). It is expected to see the exploit prices for this product decreasing in the near future.

A public exploit has been developed in Shell File. It is declared as proof-of-concept. It is possible to download the exploit at securityfocus.com. The vulnerability was handled as a non-public zero-day exploit for at least 1805 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 6853), X-Force (637) and Vulnerability Center (SBV-9847).

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VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
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Timelineinfoedit

01/01/1992 🔍
12/03/1996 +1798 days 🔍
12/03/1996 +0 days 🔍
12/10/1996 +7 days 🔍
12/10/1996 +0 days 🔍
12/06/2005 +3283 days 🔍
06/17/2014 +3115 days 🔍
08/11/2017 +1151 days 🔍
06/12/2019 +670 days 🔍

Sourcesinfoedit

Vendor: https://www.ibm.com/

Advisory: H-13
Status: Not defined

CVE: CVE-1999-0101 (🔍)
SecurityFocus: 6853 - Multiple Vendor gethostbyname() Buffer Overflow Vulnerability
X-Force: 637
Vulnerability Center: 9847 - AIX ,Solaris \x26 Microsoft Buffer Overflow via gethostbyname, Critical
OSVDB: 7990 - Overflowing DNS IPv4 length allows attackers to gain access

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

Entryinfoedit

Created: 06/17/2014 05:59 PM
Updated: 06/12/2019 09:53 AM
Changes: (8) vulnerability_discoverydate exploit_availability exploit_publicity exploit_url source_osvdb source_osvdb_title source_securityfocus_date source_securityfocus_class
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