Canonical Ubuntu Linux up to 10.9 Update Manager link following

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Canonical Ubuntu Linux up to 10.9. This affects an unknown part of the component Update Manager. This manipulation causes link following. The identification of this vulnerability is CVE-2011-3154. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Canonical Ubuntu Linux up to 10.9 (Operating System). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Update Manager. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality. The summary by CVE is:

DistUpgrade/DistUpgradeViewKDE.py in Update Manager before 1:0.87.31.1, 1:0.134.x before 1:0.134.11.1, 1:0.142.x before 1:0.142.23.1, 1:0.150.x before 1:0.150.5.1, and 1:0.152.x before 1:0.152.25.5 does not properly create temporary files, which allows local users to obtain the XAUTHORITY file content for a user via a symlink attack on the temporary file.

The weakness was shared 04/17/2014 by David Black (Website). It is possible to read the advisory at bugs.launchpad.net. This vulnerability is known as CVE-2011-3154 since 08/16/2011. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 56971 (Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : update-manager vulnerabilities (USN-1284-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195192 (Ubuntu Security Notification for Update Manager Vulnerabilities (USN-1284-1)).

Upgrading to version 10.10 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (71493), Tenable (56971), SecurityFocus (BID 50832†), Secunia (SA47024†) and Vulnerability Center (SBV-39824†). The entry VDB-69495 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56971
Nessus Name: Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : update-manager vulnerabilities (USN-1284-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 840827
OpenVAS Name: Ubuntu Update for update-manager USN-1284-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Ubuntu Linux 10.10

Timelineinfo

08/16/2011 🔍
11/28/2011 +104 days 🔍
11/28/2011 +0 days 🔍
11/29/2011 +1 days 🔍
06/04/2013 +553 days 🔍
04/17/2014 +317 days 🔍
04/17/2014 +0 days 🔍
03/25/2015 +342 days 🔍
05/11/2026 +4065 days 🔍

Sourcesinfo

Advisory: USN-1284-1
Researcher: David Black
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-3154 (🔍)
GCVE (CVE): GCVE-0-2011-3154
GCVE (VulDB): GCVE-100-69379

OVAL: 🔍

X-Force: 71493
SecurityFocus: 50832 - Ubuntu Update Manager Insecure Temporary Directory Creation Vulnerability
Secunia: 47024 - Ubuntu update for update-manager, Less Critical
Vulnerability Center: 39824 - Ubuntu Update Manager 8.04 LTS - 11.10 Local Information Leakage Vulnerability, Low

See also: 🔍

Entryinfo

Created: 03/25/2015 16:45
Updated: 05/11/2026 05:13
Changes: 03/25/2015 16:45 (71), 05/01/2017 11:31 (7), 03/15/2022 11:00 (3), 03/15/2022 11:05 (1), 05/11/2026 05:13 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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