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 5.5 MEDIUM
CVSS v2.0 7.1 HIGH

5.5^/10

CVSS v3.0 : MEDIUM

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://www.spinics.net/lists/linux-fsdevel/msg130021.html	Issue Tracking Patch Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=200297	Exploit Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/104917	Third Party Advisory VDB Entry
https://www.debian.org/security/2018/dsa-4308	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html	Mailing List Third Party Advisory
https://usn.ubuntu.com/3821-2/	Third Party Advisory
https://usn.ubuntu.com/3821-1/	Third Party Advisory
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::

Information

Published : 2018-07-26 21:29

Updated : 2019-08-13 12:15

NVD link : CVE-2018-14617

Mitre link : CVE-2018-14617

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

debian

debian_linux

canonical

ubuntu_linux

linux

linux_kernel

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