NetBSD up to 1.6 TIOCSCTTY ioctl integer coercion

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.
3.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in NetBSD up to 1.6. Affected is an unknown function of the component TIOCSCTTY ioctl. Executing a manipulation can lead to integer coercion. This vulnerability is tracked as CVE-2002-1490. Moreover, an exploit is present.

Detailsinfo

A vulnerability has been found in NetBSD up to 1.6 (Operating System) and classified as problematic. This vulnerability affects an unknown function of the component TIOCSCTTY ioctl. The manipulation with an unknown input leads to a integer coercion vulnerability. The CWE definition for the vulnerability is CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. As an impact it is known to affect availability. CVE summarizes:

NetBSD 1.4 through 1.6 beta allows local users to cause a denial of service (kernel panic) via a series of calls to the TIOCSCTTY ioctl, which causes an integer overflow in a structure counter and sets the counter to zero, which frees memory that is still in use by other processes.

The weakness was disclosed 09/16/2002 by David Laight (Website). The advisory is shared for download at ftp.netbsd.org. This vulnerability was named CVE-2002-1490. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details are unknown but an exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (10115), SecurityFocus (BID 5722†) and OSVDB (7566†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

09/16/2002 🔍
09/16/2002 +0 days 🔍
09/17/2002 +1 days 🔍
04/02/2003 +197 days 🔍
04/09/2004 +372 days 🔍
08/08/2014 +3773 days 🔍
06/13/2018 +1405 days 🔍

Sourcesinfo

Advisory: ftp.netbsd.org
Researcher: David Laight
Status: Not defined

CVE: CVE-2002-1490 (🔍)
GCVE (CVE): GCVE-0-2002-1490
GCVE (VulDB): GCVE-100-20272
X-Force: 10115
SecurityFocus: 5722 - NetBSD Repeated TIOSCTTY IOCTL Buffer Overflow Vulnerability
OSVDB: 7566 - NetBSD TIOCSCTTY ioctl Overflow DoS

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

Entryinfo

Created: 08/08/2014 12:21
Updated: 06/13/2018 09:24
Changes: 08/08/2014 12:21 (46), 06/13/2018 09:24 (10)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!