cve/2018/CVE-2018-14617.md

CVE-2018-14617

Description

An issue was discovered in the Linux kernel through 4.17.10. There is a NULL pointer dereference and panic in hfsplus_lookup() in fs/hfsplus/dir.c when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory.

POC

Reference

• https://bugzilla.kernel.org/show_bug.cgi?id=200297
• https://usn.ubuntu.com/3821-1/
• https://usn.ubuntu.com/3821-2/
• https://usn.ubuntu.com/4118-1/

Github

No PoCs found on GitHub currently.