Pentium BIOS SYSENTER/SYSEXIT denial of service

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 (≈)
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CTI Interest Score
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5.4$0-$5k0.00

A vulnerability has been found in Pentium BIOS (Chip Software) (version now known) and classified as problematic. This vulnerability affects the function SYSENTER/SYSEXIT. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was disclosed 07/28/2003 by Michal Zalewski (Website). The advisory is available at securiteam.com. Access to the local network is required for this attack to succeed. Technical details and also a public exploit are known.

It is possible to download the exploit at lcamtuf.coredump.cx. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

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

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.7
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/28/2003 🔍
07/29/2003 +1 days 🔍
09/05/2019 +5882 days 🔍

Sourcesinfo

Advisory: securiteam.com
Researcher: Michal Zalewski
Status: Not defined
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/29/2003 12:09
Updated: 09/05/2019 13:30
Changes: 07/29/2003 12:09 (46), 09/05/2019 13:30 (2)
Complete: 🔍

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