CVEs-PoC/2010/CVE-2010-4051.md

CVE-2010-4051

Description

The regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x through 2.12.2, allows context-dependent attackers to cause a denial of service (application crash) via a regular expression containing adjacent bounded repetitions that bypass the intended RE_DUP_MAX limitation, as demonstrated by a {10,}{10,}{10,}{10,}{10,} sequence in the proftpd.gnu.c exploit for ProFTPD, related to a "RE_DUP_MAX overflow."

POC

Reference

• http://seclists.org/fulldisclosure/2011/Jan/78
• http://securityreason.com/achievement_securityalert/93
• http://securityreason.com/securityalert/8003
• http://www.exploit-db.com/exploits/15935

Github

• https://github.com/cyr3con-ai/cyRating-check-k8s-webhook
• https://github.com/flyrev/security-scan-ci-presentation
• https://github.com/garethr/snykout