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CWE-416 释放后使用 类漏洞列表 2577

CWE-416 释放后使用 类弱点 2577 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-2023-6039 Linux Kernel 安全漏洞 — Kernel 5.5 Medium2023-11-09
CVE-2023-4891 Lenovo ThinkPad 资源管理错误漏洞 — Lenovo View Driver 5.5 Medium2023-11-08
CVE-2023-46769 Huawei HarmonyOS 资源管理错误漏洞 — HarmonyOS 7.5 -2023-11-08
CVE-2023-46768 Huawei HarmonyOS 资源管理错误漏洞 — HarmonyOS 7.5 -2023-11-08
CVE-2023-33074 Qualcomm Chipsets 安全漏洞 — Snapdragon 8.4 High2023-11-07
CVE-2023-1476 Linux kernel 安全漏洞 — Red Hat Enterprise Linux 8 7.0 High2023-11-03
CVE-2023-1194 Linux kernel 安全漏洞 — kernel 7.1 High2023-11-03
CVE-2023-36034 Microsoft Edge 安全漏洞 — Microsoft Edge (Chromium-based) 7.3 High2023-11-03
CVE-2023-1193 Linux kernel 安全漏洞 — Kernel 6.5 Medium2023-11-01
CVE-2023-3397 Linux Kernel 安全漏洞 — Red Hat Enterprise Linux 6 7.0 High2023-11-01
CVE-2023-1192 Linux kernel 安全漏洞 — kernel 6.5 Medium2023-11-01
CVE-2023-5178 Linux kernel 安全漏洞 — Red Hat Enterprise Linux 8 8.8 High2023-11-01
CVE-2023-44323 Microsoft Edge 资源管理错误漏洞 — Acrobat for Edge 5.5 Medium2023-10-30
CVE-2023-46246 Vim 资源管理错误漏洞 — vim 4.0 Medium2023-10-27
CVE-2023-5574 xorg-x11-server 资源管理错误漏洞 — Red Hat Enterprise Linux 9 7.0 High2023-10-25
CVE-2023-5380 xorg-x11-server 资源管理错误漏洞 — Red Hat Enterprise Linux 7 4.7 Medium2023-10-25
CVE-2023-34366 JustSystems Ichitaro 资源管理错误漏洞 — Ichitaro 2023 7.8 High2023-10-19
CVE-2023-5535 Vim 资源管理错误漏洞 — vim/vim 7.8 -2023-10-11
CVE-2023-44095 Huawei HarmonyOS 资源管理错误漏洞 — HarmonyOS 7.5 -2023-10-11
CVE-2023-38216 Adobe Bridge 资源管理错误漏洞 — Bridge 5.5 Medium2023-10-11
CVE-2023-36565 Microsoft Office 安全漏洞 — Microsoft Office 2019 for Mac 7.0 High2023-10-10
CVE-2023-36776 Microsoft Win32K 竞争条件问题漏洞 — Windows 10 Version 1809 7.0 High2023-10-10
CVE-2023-36743 Microsoft Win32K 安全漏洞 — Windows 10 Version 1809 7.8 High2023-10-10
CVE-2023-38166 Microsoft Windows Layer 2 Tunneling Protocol 竞争条件问题漏洞 — Windows 10 Version 1809 8.1 High2023-10-10
CVE-2023-36583 Microsoft Message Queuing 安全漏洞 — Windows 10 Version 1809 7.3 High2023-10-10
CVE-2023-36605 Microsoft Windows Named Pipe File System 安全漏洞 — Windows 10 Version 1809 7.4 High2023-10-10
CVE-2023-36726 Microsoft Windows IKE Extension 安全漏洞 — Windows 10 Version 1809 7.8 High2023-10-10
CVE-2023-41774 Microsoft Windows Layer 2 Tunneling Protocol 竞争条件问题漏洞 — Windows 10 Version 1809 8.1 High2023-10-10
CVE-2023-41773 Microsoft Windows Layer 2 Tunneling Protocol 竞争条件问题漏洞 — Windows 10 Version 1809 8.1 High2023-10-10
CVE-2023-41771 Microsoft Windows Layer 2 Tunneling Protocol 竞争条件问题漏洞 — Windows 10 Version 1809 8.1 High2023-10-10

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 2577 条 CVE 漏洞。