CWE-831 詳細資料

CWE-831

Signal Handler Function Associated with Multiple Signals
2010-12-13
00h00 +00:00
Incomplete
2025-12-11
00h00 +00:00
指定 CWE 通知
掌握特定 CWE 的任何變更。
管理通知

名稱: Signal Handler Function Associated with Multiple Signals

The product defines a function that is used as a handler for more than one signal.

一般資訊

引入方式

Implementation

適用平台

程式語言

類別: Not Language-Specific (Undetermined)

常見後果

範圍 影響 可能性
Availability
Integrity
Confidentiality
Access Control
Other
DoS: Crash, Exit, or Restart, Execute Unauthorized Code or Commands, Read Application Data, Gain Privileges or Assume Identity, Bypass Protection Mechanism, Varies by Context

注意:The most common consequence will be a corruption of the state of the product, possibly leading to a crash or exit. However, if the signal handler is operating on state variables for security relevant libraries or protection mechanisms, the consequences can be far more severe, including protection mechanism bypass, privilege escalation, or information exposure.

漏洞對應備注

理由說明 : This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
備註 : 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.

參考資料

REF-360

Delivering Signals for Fun and Profit
Michal Zalewski.
https://lcamtuf.coredump.cx/signals.txt

REF-361

Race Condition: Signal Handling
https://vulncat.fortify.com/en/detail?id=desc.structural.cpp.race_condition_signal_handling#:~:text=Signal%20handling%20race%20conditions%20can,installed%20to%20handle%20multiple%20signals.s

提交

名稱 機構 日期 發布日期 Version
CWE Content Team MITRE 2010-12-12 +00:00 2010-12-13 +00:00 1.11

修改記錄

名稱 機構 日期 備註
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2011-06-27 +00:00 updated Common_Consequences
CWE Content Team MITRE 2014-06-23 +00:00 updated Demonstrative_Examples, References
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 References, Relationships, Type
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2025-12-11 +00:00 updated Applicable_Platforms, Time_of_Introduction, Weakness_Ordinalities