CVE-2018-14617

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.

CVSS v3.0 NVD

5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

7.1 HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C

EPSS

2.51% chance of exploitation in the next 30 days, 85th percentile

Published

2018-07-27

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://bugzilla.kernel.org/show_bug.cgi?id=200297

Security advisories

• http://www.securityfocus.com/bid/104917
• https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
• https://usn.ubuntu.com/3821-1
• https://usn.ubuntu.com/3821-2
• https://www.debian.org/security/2018/dsa-4308
• https://www.spinics.net/lists/linux-fsdevel/msg130021.html
• https://usn.ubuntu.com/4094-1
• https://usn.ubuntu.com/4118-1

References

• CVE Record
• NVD entry