NULL pointer dereference in Linux Kernel
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- usn.ubuntu.com/3821-1/ (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/104917 (VDB Entry, Third Party Advisory, vdb-entry)
- www.spinics.net/lists/linux-fsdevel/msg130021.html (Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2018/10/msg00003.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/3821-2/ (vendor-advisory, Third Party Advisory)
- bugzilla.kernel.org/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2018/dsa-4308 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4094-1/ (vendor-advisory)
- usn.ubuntu.com/4118-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2018-14617?
- CVE-2018-14617 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-07-27.
- How severe is CVE-2018-14617?
- Medium severity. CVSS v3 base score is 5.5 out of 10.