Debian dpkg up to 1.16.3 write_pidfile race condition

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.
3.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Debian dpkg up to 1.16.3. The affected element is the function write_pidfile. Performing a manipulation results in race condition. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Debian dpkg up to 1.16.3. This affects the function write_pidfile. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on availability.

The weakness was released 06/04/2012 by Carsten Hey as 675918 as not defined bug report (Website). It is possible to read the advisory at bugs.debian.org. The vendor was not involved in the public release. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed by Carsten Hey and been published immediately after the advisory. The exploit is shared for download at bugs.debian.org. It is declared as proof-of-concept.

Upgrading to version 1.16.4 eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (91657†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Debian

Name

dpkg

Version

License

open-source

Website

Vendor: https://www.debian.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: dpkg 1.16.4

Timelineinfo

06/04/2012 🔍
06/04/2012 +0 days 🔍
06/07/2012 +3 days 🔍
03/27/2013 +293 days 🔍
05/05/2018 +1865 days 🔍

Sourcesinfo

Vendor: debian.org

Advisory: 675918
Researcher: Carsten Hey
Status: Not defined

GCVE (VulDB): GCVE-100-8091
OSVDB: 91657

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

Entryinfo

Created: 03/27/2013 15:06
Updated: 05/05/2018 17:56
Changes: 03/27/2013 15:06 (52), 05/05/2018 17:56 (1)
Complete: 🔍
Committer:
Cache ID: 216:0A3:103