cve/2016/CVE-2016-4997.md

CVE-2016-4997

Description

The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.

POC

Reference

• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
• https://www.exploit-db.com/exploits/40435/
• https://www.exploit-db.com/exploits/40435/
• https://www.exploit-db.com/exploits/40489/
• https://www.exploit-db.com/exploits/40489/

Github

• https://github.com/JlSakuya/Linux-Privilege-Escalation-Exploits