In the __d2b 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. Accessing _x will trigger a null pointer dereference bug in case of a memory allocation failure.
References
Link | Resource |
---|---|
https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/ | Exploit Third Party Advisory |
Configurations
Information
Published : 2020-03-19 09:15
Updated : 2020-03-24 11:11
NVD link : CVE-2019-14878
Mitre link : CVE-2019-14878
JSON object : View
CWE
CWE-476
NULL Pointer Dereference
Products Affected
newlib_project
- newlib