Chi tiết CWE-831

CWE-831

Signal Handler Function Associated with Multiple Signals
2010-12-13
00h00 +00:00
Incomplete
2025-12-11
00h00 +00:00
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Quản lý thông báo

Tên: Signal Handler Function Associated with Multiple Signals

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

Thông tin chung

Các cách xuất hiện

Implementation

Nền tảng áp dụng

Ngôn ngữ

Lớp: Not Language-Specific (Undetermined)

Hậu quả phổ biến

Phạm vi Tác động Khả năng xảy ra
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

Ghi chú: 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.

Ghi chú ánh xạ lỗ hổng

Lý do : 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.
Bình luận : 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.

Tài liệu tham khảo

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

Gửi

Tên Tổ chức Ngày Ngày phát hành Version
CWE Content Team MITRE 2010-12-12 +00:00 2010-12-13 +00:00 1.11

Sửa đổi

Tên Tổ chức Ngày Bình luận
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