CVEs-PoC/2020/CVE-2020-10029.md

### [CVE-2020-10029](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10029)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.

### POC

#### Reference
- https://sourceware.org/bugzilla/show_bug.cgi?id=25487

#### Github
- https://github.com/ForAllSecure/VulnerabilitiesLab
- https://github.com/Live-Hack-CVE/CVE-2020-10029
- https://github.com/alphaSeclab/sec-daily-2020
- https://github.com/dbrumley/automotive-downloader
- https://github.com/garethr/snykout