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CWE-125 跨界内存读 类漏洞列表 3495

CWE-125 跨界内存读 类弱点 3495 条 CVE 漏洞汇总,含 AI 中文分析。

CWE-125 越界读取属于内存安全漏洞,指程序访问了缓冲区边界之外的内存区域。攻击者利用此缺陷可读取敏感数据或引发信息泄露,甚至通过特定构造触发逻辑错误以辅助后续攻击。开发者应严格实施边界检查,确保索引在有效范围内,并使用支持自动边界检测的高级语言或静态分析工具,从源头杜绝非法内存访问。

MITRE CWE 官方描述
CWE:CWE-125 Out-of-bounds Read 英文:The product reads data past the end, or before the beginning, of the intended buffer. 中文:该产品在预期缓冲区(buffer)的末尾之后或开头之前读取数据。
常见影响 (4)
Confidentiality Read Memory
An attacker could get secret values such as cryptographic keys, PII, memory addresses, or other information that could be used in additional attacks.
Confidentiality Bypass Protection Mechanism
Out-of-bounds memory could contain memory addresses or other information that can be used to bypass ASLR and other protection mechanisms in order to improve the reliability of exploiting a separate weakness for code execution.
Availability DoS: Crash, Exit, or Restart
An attacker could cause a segmentation fault or crash by causing memory to be read outside of the bounds of the buffer. This is especially likely when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string.
Other Varies by Context
The read operation could produce other undefined or unexpected results.
缓解措施 (2)
Implementation Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does. When performing input validation, consider all potentially relevant properties, including length, type of input, the full range…
Architecture and Design Use a language that provides appropriate memory abstractions.
代码示例 (2)
In the following code, the method retrieves a value from an array at a specific array index location that is given as an input parameter to the method
int getValueFromArray(int *array, int len, int index) { int value; // check that the array index is less than the maximum // length of the array if (index < len) { // get the value at the specified index of the array value = array[index]; } // if array index is invalid then output error message // and return value indicating error else { printf("Value is: %d\n", array[index]); value = -1; } return value; }
Bad · C
... // check that the array index is within the correct // range of values for the array if (index >= 0 && index < len) { ...
Good · C
In the following C/C++ example the method processMessageFromSocket() will get a message from a socket, placed into a buffer, and will parse the contents of the buffer into a structure that contains the message length and the message body. A for loop is used to copy the message body into a local character string which will be passed to another method for processing.
int processMessageFromSocket(int socket) { int success; char buffer[BUFFER_SIZE]; char message[MESSAGE_SIZE]; // get message from socket and store into buffer //Ignoring possibliity that buffer > BUFFER_SIZE if (getMessage(socket, buffer, BUFFER_SIZE) > 0) { // place contents of the buffer into message structure ExMessage *msg = recastBuffer(buffer); // copy message body into string for processing int index; for (index = 0; index < msg->msgLength; index++) { message[index] = msg->msgBody[index]; } message[index] = '\0'; // process message success = processMessage(message); } return success; }
Bad · C
CVE ID 标题 CVSS 风险等级 Published
CVE-2021-31446 Foxit Reader 缓冲区错误漏洞 — Reader 3.3 - 2021-05-07
CVE-2021-31445 Foxit Reader 缓冲区错误漏洞 — Reader 3.3 - 2021-05-07
CVE-2021-31444 Foxit Reader 缓冲区错误漏洞 — Reader 3.3 - 2021-05-07
CVE-2021-31443 Foxit Reader 缓冲区错误漏洞 — Reader 3.3 - 2021-05-07
CVE-2020-35519 Linux kernel 缓冲区错误漏洞 — kernel 7.8 - 2021-05-06
CVE-2021-20254 Samba 缓冲区错误漏洞 — samba 8.1 - 2021-05-05
CVE-2021-20266 Red Hat Package Manager 缓冲区错误漏洞 — rpm 4.9 - 2021-04-30
CVE-2021-29463 Exiv2 缓冲区错误漏洞 — exiv2 3.3 Low 2021-04-30
CVE-2021-31431 Corel Parallels Desktop 缓冲区错误漏洞 — Desktop 6.0 - 2021-04-29
CVE-2021-31432 Corel Parallels Desktop 缓冲区错误漏洞 — Desktop 6.0 - 2021-04-29
CVE-2021-31430 Corel Parallels Desktop 缓冲区错误漏洞 — Desktop 6.0 - 2021-04-29
CVE-2021-22660 Delta Electronics CNCSoft-B 缓冲区错误漏洞 — Delta Electronics CNCSoft-B 7.8 - 2021-04-27
CVE-2021-29473 Exiv2 缓冲区错误漏洞 — exiv2 2.5 Low 2021-04-26
CVE-2021-29470 Exiv2 缓冲区错误漏洞 — exiv2 4.7 Medium 2021-04-23
CVE-2020-27737 多款siemens产品 缓冲区错误漏洞 — APOGEE PXC Compact (BACnet) 6.5 Medium 2021-04-22
CVE-2021-0261 Juniper Networks Junos OS 安全漏洞 — Junos OS 7.5 High 2021-04-22
CVE-2021-3506 Linux kernel 缓冲区错误漏洞 — kernel 7.1 - 2021-04-19
CVE-2021-29458 Andreas Huggel Exiv2 缓冲区错误漏洞 — exiv2 5.5 - 2021-04-19
CVE-2021-21091 Adobe Bridge 缓冲区错误漏洞 — Bridge 3.3 - 2021-04-15
CVE-2021-27260 Corel Parallels Desktop 缓冲区错误漏洞 — Desktop 6.0 - 2021-04-14
CVE-2021-27247 Tencent WeChat 缓冲区错误漏洞 — WeChat 4.3 - 2021-04-14
CVE-2021-27271 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 7.8 - 2021-03-30
CVE-2021-27270 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 7.8 - 2021-03-30
CVE-2021-27266 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 3.3 - 2021-03-30
CVE-2021-27265 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 3.3 - 2021-03-30
CVE-2021-27263 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 3.3 - 2021-03-30
CVE-2021-27264 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 3.3 - 2021-03-30
CVE-2021-27262 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 3.3 - 2021-03-30
CVE-2021-27261 Foxit PhantomPDF 缓冲区错误漏洞 — PhantomPDF 7.8 - 2021-03-30
CVE-2021-27244 Corel Parallels Desktop 缓冲区错误漏洞 — Desktop 6.5 - 2021-03-29

CWE-125(跨界内存读) 是常见的弱点类别,本平台收录该类弱点关联的 3495 条 CVE 漏洞。