HP HP-UX 10/10.20/9 chfn Long Argument memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability classified as critical has been found in HP HP-UX 10/10.20/9 (Operating System). Affected is an unknown code block of the component chfn. The manipulation as part of a Long Argument leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The software 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

buffer overflow in chfn command in hp-ux 9.x through 10.20 allows local users to gain privileges via a long command line argument.

The bug was discovered 12/09/1996. The weakness was presented 12/13/1996 as the HP Bug of the Week! as not defined posting (Bugtraq). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability is traded as CVE-1999-1089. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 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 X-Force (2008) and Vulnerability Center (SBV-20904). Further details are available at ciac.llnl.gov. See 13790 for similar entry.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.3
VulDB Temp Score: 8.9
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍


12/09/1996 🔍
12/09/1996 +0 days 🔍
12/13/1996 +4 days 🔍
12/13/1996 +0 days 🔍
02/17/2009 +4449 days 🔍
06/17/2014 +1946 days 🔍
08/27/2019 +1897 days 🔍


Vendor: hp.com

Advisory: the HP Bug of the Week!
Status: Not defined

CVE: CVE-1999-1089 (🔍)
X-Force: 2008
Vulnerability Center: 20904 - HP-UX 9.0 Through 10.20 Buffer Overflow in chfn Command Local Privilege Escalation Vulnerability, High
OSVDB: 9598 - CVE-1999-1089 - HP-UX - Buffer Overflow Issue

Misc.: 🔍
See also: 🔍


Created: 06/17/2014 06:01 PM
Updated: 08/27/2019 11:50 AM
Changes: 06/17/2014 06:01 PM (60), 08/27/2019 11:50 AM (3)
Complete: 🔍


No comments yet. Languages: en.

Please log in to comment.

Do you want to use VulDB in your project?

Use the official API to access entries easily!