Canonical Ubuntu Linux up to 10.9 input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Canonical Ubuntu Linux up to 10.9. Affected is an unknown function. This manipulation causes input validation. This vulnerability appears as CVE-2011-4407. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Canonical Ubuntu Linux up to 10.9 (Operating System) and classified as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. The summary by CVE is:

ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.

The weakness was presented 05/13/2014 by Marc Deslauriers (Website). The advisory is shared at bugs.launchpad.net. This vulnerability is known as CVE-2011-4407 since 11/07/2011. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 57763 (Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : software-properties vulnerability (USN-1352-1)), 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 195126 (Ubuntu Security Notification for Software Properties Vulnerability (USN-1352-1)).

Upgrading to version 10.10 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (72903), Tenable (57763), SecurityFocus (BID 55736†) and Vulnerability Center (SBV-36306†). See VDB-62677 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 57763
Nessus Name: Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : software-properties vulnerability (USN-1352-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 840880
OpenVAS Name: Ubuntu Update for software-properties USN-1352-1
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

11/07/2011 🔍
02/01/2012 +86 days 🔍
10/01/2012 +243 days 🔍
10/01/2012 +0 days 🔍
10/02/2012 +1 days 🔍
05/13/2014 +588 days 🔍
05/13/2014 +0 days 🔍
03/25/2015 +316 days 🔍
01/05/2025 +3574 days 🔍

Sourcesinfo

Advisory: USN-1352-1
Researcher: Marc Deslauriers
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4407 (🔍)
GCVE (CVE): GCVE-0-2011-4407
GCVE (VulDB): GCVE-100-69673

OVAL: 🔍

X-Force: 72903
SecurityFocus: 55736 - Ubuntu Software Properties PPA GPG Keys Validation Security Bypass Vulnerability
Vulnerability Center: 36306 - Ubuntu Software Properties Package Improper PPA GPG Validation Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/25/2015 16:45
Updated: 01/05/2025 19:54
Changes: 03/25/2015 16:45 (62), 04/17/2017 11:43 (11), 03/21/2022 11:39 (3), 03/21/2022 11:47 (1), 01/05/2025 19:54 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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