### [CVE-2018-20796](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20796) ![](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 In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\\1\\1|t1|\\\2537)+' in grep. ### POC #### Reference No PoCs from references. #### Github - https://github.com/ARPSyndicate/cvemon - https://github.com/DanMolz/wiz-scripts - https://github.com/GrigGM/05-virt-04-docker-hw - https://github.com/PajakAlexandre/wik-dps-tp02 - https://github.com/cdupuis/image-api - https://github.com/flyrev/security-scan-ci-presentation - https://github.com/fokypoky/places-list - https://github.com/garethr/snykout - https://github.com/mauraneh/WIK-DPS-TP02