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This project will be discontinued after December 13, 2021. [more]
2020-03-19
In the __multiply function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate a big integer, however no check is performed to verify if the allocation succeeded or not. The access of _x[0] will trigger a null pointer dereference bug in case of a memory allocation failure.
Products | Newlib |
Type | NULL Pointer Dereference (CWE-476) |
First patch | - None (likely due to unavailable code) |
Links | https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/ |