Détail du CWE-832

CWE-832

Unlock of a Resource that is not Locked
Incomplete
2010-12-13
00h00 +00:00
2023-06-29
00h00 +00:00
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Nom: Unlock of a Resource that is not Locked

The product attempts to unlock a resource that is not locked.

Description du CWE

Depending on the locking functionality, an unlock of a non-locked resource might cause memory corruption or other modification to the resource (or its associated metadata that is used for tracking locks).

Informations générales

Conséquences courantes

Portée Impact Probabilité
Integrity
Confidentiality
Availability
Other		DoS: Crash, Exit, or Restart, Execute Unauthorized Code or Commands, Modify Memory, Other

Note: Depending on the locking being used, an unlock operation might not have any adverse effects. When effects exist, the most common consequence will be a corruption of the state of the product, possibly leading to a crash or exit; depending on the implementation of the unlocking, memory corruption or code execution could occur.

Exemples observés

Références Description

CVE-2010-4210

function in OS kernel unlocks a mutex that was not previously locked, causing a panic or overwrite of arbitrary memory.

CVE-2008-4302

Chain: OS kernel does not properly handle a failure of a function call (CWE-755), leading to an unlock of a resource that was not locked (CWE-832), with resultant crash.

CVE-2009-1243

OS kernel performs an unlock in some incorrect circumstances, leading to panic.

Notes de cartographie des vulnérabilités

Justification : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Commentaire : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Soumission

Nom Organisation Date Date de publication Version
CWE Content Team MITRE 2010-12-12 +00:00 2010-12-13 +00:00 1.11

Modifications

Nom Organisation Date Commentaire
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2020-02-24 +00:00 updated Relationships
CWE Content Team MITRE 2023-01-31 +00:00 updated Common_Consequences, Description
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes