If you are unfamiliar with heap based buffer overflows, at least at a basic level, then it is suggested that you focus in this area first. To follow along you will need: - Windows XP with just SP1 installed. - Windows XP with just SP2/SP3 installed. - A debugger (Olly Debugger, Imm...
problem leads toCWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and ...
Magic number into APNG file. Now, as analysed in the previous post, there are two vulnerabilities happening that lead to a buffer overflow. Said overflow happens in the following line: ... if (fread(pChunk->p + 4, pChunk->size - 4, 1, f) == 1) ... freadis a tricky function ...
See this answer for an overview on how SSO is implemented https://stackoverflow.com/questions/10315041/meaning-of-acronym-sso-in-the-context-of-stdstring EDIT: That's the link to the thread, here's the answer https://stackoverflow.com/a/10319672 14th Dec 2022, 5:45 PM XXX + 1 Ketan...
“denseness” of it and so, will be kept for a future entry. But it’s good to mention that most of the time and as per my research while writing this, exploits in the heap happen to either a buffer overflow which will overwrite another chunk in memory (being careful to bypass the ...
If the above fields were set up correctly, when_IO_str_overflow()is called it will in turn call the function pointer at (_IO_strfile*)stderr._s._allocate_buffer(). This resides atstderr + 0xe0, just after the vtable pointer. This address overlaps thestdout_flagsfield; if there isst...
If possible, it would be helpful to enable trace logging to get an idea if there's a specific file which is causing the overflow, as there could be a bug. Note that this is still workspace symbol search, which has a specific meaning within the LSP and is used by various clients to ...
If ParallelVacuumIsActive() is + * true, we are in the parallel mode, meaning that we do either parallel index + * vacuuming or parallel table vacuuming, or both. If ParallelHeapVacuumIsActive() + * is true, we do at least parallel table vacuuming. */ #define ParallelVacuumIsActive(v...
See this answer for an overview on how SSO is implemented https://stackoverflow.com/questions/10315041/meaning-of-acronym-sso-in-the-context-of-stdstring EDIT: That's the link to the thread, here's the answer https://stackoverflow.com/a/10319672 14th Dec 2022, 5:45 PM XXX + 1 Ketan...
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The weakness was ...