VDB-15936 · CVE-2000-0794 · XFDB 5063

SGI IRIX 6.2 gmemusage/gr_osview HOME 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.
8.4	$0-$5k	0.00

A vulnerability was found in SGI IRIX 6.2 (Operating System). It has been classified as critical. Affected is an unknown code of the file gmemusage/gr_osview. The manipulation of the argument HOME as part of a Environment Variable leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in IRIX libgl.so library allows local users to gain root privileges via a long HOME variable to programs such as (1) gmemusage and (2) gr_osview.

The issue has been introduced in 03/01/1996. The weakness was released 08/02/2000 by Last Stage (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability is traded as CVE-2000-0794. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed in ANSI C and been published even before and not after the advisory. The exploit is shared for download at downloads.securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1615 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (5063), Exploit-DB (20127), SecurityFocus (BID 1527†) and OSVDB (8568†). Entries connected to this vulnerability are available at VDB-15940, VDB-15939, VDB-15938 and VDB-15937.

Productinfo

Type

Operating System

Vendor

Name

IRIX

Version

License

commercial

Support

end of life (old version)

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: IRIX 6.3

Timelineinfo

03/01/1996 🔍
09/01/1997 +549 days 🔍
08/02/2000 +1066 days 🔍
08/02/2000 +0 days 🔍
10/20/2000 +79 days 🔍
04/09/2004 +1266 days 🔍
06/27/2014 +3731 days 🔍
10/15/2024 +3763 days 🔍

Sourcesinfo

Vendor: sgi.com

Advisory: archives.neohapsis.com
Researcher: Last Stage
Status: Not defined

CVE: CVE-2000-0794 (🔍)
X-Force: 5063
SecurityFocus: 1527 - IRIX libgl.so Buffer Overflow Vulnerability
OSVDB: 8568 - IRIX libgl.so HOME Variable Privilege Escalation

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

Entryinfo

Created: 06/27/2014 05:52 PM
Updated: 10/15/2024 06:40 AM
Changes: 06/27/2014 05:52 PM (61), 04/11/2019 10:20 AM (7), 10/15/2024 06:40 AM (17)
Complete: 🔍
Cache ID: 18:32E:40