In languages that use a value model of variables, recursive types require the notion of a pointer: a variable (or field) whose value is a reference to some object. Pointers were first introduced in PL/I. In some languages (e.g., Pascal, Ada 83, and Modula-3), pointers are restricted...
Inxlsxioread_sheetlist_open(),resultis a pointer tostruct xlsxio_read_sheetlist_structobject to be initialized. IfXML_Char_openzip()fails (returnsNULL),result->xmlparserremains uninitialized and thenxlsxioread_sheetlist_open()returnsresultto user directly. // xlsxio_read.c:1414, xlsxioread_...
so the command used to overwrite this word is: site exec \x20\xbc\x02\x10%x%x%x%n Immediately after the attack sends the malicious SITE EXEC command, the pointer taintedness detector raises an alert indicating that the instruction SW $21,0($3) dereferences a tainted value in register ...
This vulnerability could be used to disclose potentially sensitive data, cause application crash, or execute arbitrary code. In cases of local attack vector, it may be possible to elevate privileges. How to Detect Untrusted Pointer Dereference Vulnerabilities Website Security Test GDPR & PCI DSS Test...
In this function, the expressionIt(start)is a temporary object. The language refuses to take a (non-const lvalue) reference to it, because the referent would be destroyed immediately at the semicolon of the return statement. You don't want to return a reference to a temporary value at all...