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CWE-416 释放后使用 类漏洞列表 2495

CWE-416 释放后使用 类弱点 2495 条 CVE 漏洞汇总,含 AI 中文分析。

CWE-416 释放后使用是一种内存安全漏洞,指程序在释放内存后仍引用该内存区域。攻击者常利用此缺陷,通过重新分配内存并控制其内容,诱导程序执行恶意代码或读取敏感数据,从而引发远程代码执行或信息泄露。开发者应避免此类风险,确保在指针置空前彻底解除引用,采用智能指针等自动内存管理机制,并严格验证内存生命周期,防止悬空指针操作。

MITRE CWE 官方描述
CWE:CWE-416 Use After Free 英文:产品在内存被释放后重新使用或引用该内存。在此之后,该内存可能会被重新分配并保存到另一个指针中,而原始指针则指向新分配内存中的某个位置。由于内存“属于”操作新指针的代码,因此使用原始指针的任何操作均不再有效。
常见影响 (4)
IntegrityModify Memory
The use of previously freed memory may corrupt valid data, if the memory area in question has been allocated and used properly elsewhere.
AvailabilityDoS: Crash, Exit, or Restart
If chunk consolidation occurs after the use of previously freed data, the process may crash when invalid data is used as chunk information.
ConfidentialityRead Memory
Read operations on freed memory can sometimes leak sensitive information instead of causing a crash
Integrity, Confidentiality, AvailabilityExecute Unauthorized Code or Commands
If malicious data is entered before chunk consolidation can take place, it may be possible to take advantage of a write-what-where primitive to execute arbitrary code. If the newly allocated data happens to hold a class, in C++ for example, various function pointers may be scattered within the heap …
缓解措施 (2)
Architecture and DesignChoose a language that provides automatic memory management.
ImplementationWhen freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
Effectiveness: Defense in Depth
代码示例 (2)
The following example demonstrates the weakness.
#include <stdio.h> #include <unistd.h> #define BUFSIZER1 512 #define BUFSIZER2 ((BUFSIZER1/2) - 8) int main(int argc, char **argv) { char *buf1R1; char *buf2R1; char *buf2R2; char *buf3R2; buf1R1 = (char *) malloc(BUFSIZER1); buf2R1 = (char *) malloc(BUFSIZER1); free(buf2R1); buf2R2 = (char *) malloc(BUFSIZER2); buf3R2 = (char *) malloc(BUFSIZER2); strncpy(buf2R1, argv[1], BUFSIZER1-1); free(buf1R1); free(buf2R2); free(buf3R2); }
Bad · C
The following code illustrates a use after free error:
char* ptr = (char*)malloc (SIZE); if (err) { abrt = 1; free(ptr); } ... if (abrt) { logError("operation aborted before commit", ptr); }
Bad · C
CVE ID标题CVSS风险等级Published
CVE-2023-23404 Microsoft Windows Point-to-Point Tunneling Protocol 竞争条件问题漏洞 — Windows 10 Version 1809 8.1 High2023-03-14
CVE-2023-23392 Microsoft Windows HTTP Protocol Stack 安全漏洞 — Windows Server 2022 9.8 Critical2023-03-14
CVE-2023-0030 Linux kernel 资源管理错误漏洞 — kernel 7.8 -2023-03-08
CVE-2022-33245 Qualcomm 芯片 资源管理错误漏洞 — Snapdragon 6.7 Medium2023-03-07
CVE-2022-3424 Linux kernel 资源管理错误漏洞 — kernel 7.8 -2023-03-06
CVE-2023-1118 Linux kernel 资源管理错误漏洞 — Kernel 7.8 -2023-03-02
CVE-2023-0461 Linux kernel 品资源管理错误漏洞 — Linux Kernel 7.8 High2023-02-28
CVE-2023-23586 Linux kernel 资源管理错误漏洞 — Linux Kernel 5.5 Medium2023-02-17
CVE-2023-21584 Adobe FrameMaker 资源管理错误漏洞 — FrameMaker 5.5 Medium2023-02-17
CVE-2023-22244 Adobe Premiere Rush 资源管理错误漏洞 — Premiere Rush 7.8 High2023-02-17
CVE-2023-22246 Adobe Animate 资源管理错误漏洞 — Animate 7.8 High2023-02-17
CVE-2023-21808 Microsoft .NET and Visual Studio 安全漏洞 — Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) 7.8 High2023-02-14
CVE-2023-21688 Microsoft Windows ALPC 安全漏洞 — Windows 10 Version 1809 7.8 High2023-02-14
CVE-2023-21822 Microsoft Windows Win32k 安全漏洞 — Windows 10 Version 1809 7.8 High2023-02-14
CVE-2023-24581 Siemens Solid Edge 资源管理错误漏洞 — Solid Edge SE2022 7.8 High2023-02-14
CVE-2022-33225 Qualcomm 芯片资源管理错误漏洞 — Snapdragon 6.7 Medium2023-02-09
CVE-2022-43552 curl 资源管理错误漏洞 — https://github.com/curl/curl 7.4 -2023-02-09
CVE-2023-0240 Linux kernel 资源管理错误漏洞 — Linux Kernel 7.8 High2023-01-30
CVE-2023-0266 Linux kernel 资源管理错误漏洞 — Linux Kernel 7.9 High2023-01-30
CVE-2022-42374 Tracker Software PDF-XChange Editor 资源管理错误漏洞 — PDF-XChange Editor 7.8 -2023-01-26
CVE-2022-42408 PDF-XChange Editor 资源管理错误漏洞 — PDF-XChange Editor 5.5 -2023-01-26
CVE-2022-42414 PDF-XChange Editor 资源管理错误漏洞 — PDF-XChange Editor 5.5 -2023-01-26
CVE-2023-21795 Microsoft Edge 安全漏洞 — Microsoft Edge (Chromium-based) 8.3 High2023-01-23
CVE-2021-33641 openEuler byacc 资源管理错误漏洞 — byacc 9.8 -2023-01-20
CVE-2023-0358 GPAC 资源管理错误漏洞 — gpac/gpac 7.8 -2023-01-18
CVE-2023-21601 Adobe Dimension 资源管理错误漏洞 — Dimension 5.5 Medium2023-01-18
CVE-2023-21608 Adobe Acrobat Reader 资源管理错误漏洞 — Acrobat Reader 7.8 High2023-01-18
CVE-2022-41858 Linux kernel 代码问题漏洞 — Linux kernel 7.1 -2023-01-17
CVE-2023-21598 Adobe InCopy 资源管理错误漏洞 — InCopy 5.5 Medium2023-01-13
CVE-2022-3977 Linux kernel 资源管理错误漏洞 — Kernel 7.8 -2023-01-12

CWE-416(释放后使用) 是常见的弱点类别,本平台收录该类弱点关联的 2495 条 CVE 漏洞。