FreeBSD up to 5.4 on Hyper Threading information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeBSD on Hyper Threading. It has been rated as problematic. This vulnerability affects unknown code. This manipulation causes information disclosure. This vulnerability is tracked as CVE-2005-0109. The attack is possible to be carried out remotely. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in FreeBSD on Hyper Threading (Operating System). Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Hyper-Threading technology, as used in FreeBSD and other operating systems that are run on Intel Pentium and other processors, allows local users to use a malicious thread to create covert channels, monitor the execution of other threads, and obtain sensitive information such as cryptographic keys, via a timing attack on memory cache misses.

The bug was discovered 03/04/2005. The weakness was disclosed 05/13/2005 by Colin Percival (Website). The advisory is shared at ftp.freebsd.org. This vulnerability is known as CVE-2005-0109 since 01/18/2005. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20522 (Ubuntu 4.10 / 5.04 : linux-source-2.6.8.1, linux-source-2.6.10 vulnerabilities (USN-131-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117897 (CentOS Security Update for OpenSSL (CESA-2005:476)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.freebsd.org. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (20522), SecurityFocus (BID 12724†), OSVDB (16440†), Secunia (SA18165†) and SecurityTracker (ID 1013967†). The entries VDB-950, VDB-1539 and VDB-24996 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.2

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.6
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20522
Nessus Name: Ubuntu 4.10 / 5.04 : linux-source-2.6.8.1, linux-source-2.6.10 vulnerabilities (USN-131-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 52691
OpenVAS Name: FreeBSD Security Advisory (FreeBSD-SA-05:09.htt.asc)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: ftp.freebsd.org

Timelineinfo

01/18/2005 🔍
03/04/2005 +45 days 🔍
03/04/2005 +0 days 🔍
03/05/2005 +1 days 🔍
05/13/2005 +69 days 🔍
05/13/2005 +0 days 🔍
05/13/2005 +0 days 🔍
05/30/2005 +16 days 🔍
06/06/2005 +7 days 🔍
01/15/2006 +223 days 🔍
01/12/2025 +6937 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: ftp.freebsd.org
Researcher: Colin Percival
Status: Confirmed

CVE: CVE-2005-0109 (🔍)
GCVE (CVE): GCVE-0-2005-0109
GCVE (VulDB): GCVE-100-1477

OVAL: 🔍

CERT: 🔍
SecurityFocus: 12724 - Multiple Vendor Hyper-Threading Technology Information Disclosure Vulnerability
Secunia: 18165 - IBM HMC OpenSSL Vulnerabilities, Less Critical
OSVDB: 16440 - Multiple Unix Vendor Hyper-Threading (HTT) Arbitrary Thread Process Information Disclosure
SecurityTracker: 1013967
Vulnerability Center: 8221
Vupen: ADV-2005-3002

See also: 🔍

Entryinfo

Created: 05/30/2005 13:27
Updated: 01/12/2025 03:41
Changes: 05/30/2005 13:27 (85), 07/03/2019 06:26 (7), 03/11/2021 11:34 (12), 07/08/2024 01:21 (17), 01/12/2025 03:41 (1)
Complete: 🔍
Cache ID: 216:843:103

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