Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.17.10 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/104917Third Party AdvisoryVDB Entry
- https://bugzilla.kernel.org/show_bug.cgi?id=200297ExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3821-1/Third Party Advisory
- https://usn.ubuntu.com/3821-2/Third Party Advisory
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
- https://www.spinics.net/lists/linux-fsdevel/msg130021.htmlIssue TrackingPatchThird Party Advisory
- http://www.securityfocus.com/bid/104917Third Party AdvisoryVDB Entry
- https://bugzilla.kernel.org/show_bug.cgi?id=200297ExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3821-1/Third Party Advisory
- https://usn.ubuntu.com/3821-2/Third Party Advisory
- https://usn.ubuntu.com/4094-1/
FAQ
What is CVE-2018-14617?
CVE-2018-14617 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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)...
How severe is CVE-2018-14617?
CVE-2018-14617 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-14617?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux.