PT-2018-2899 · Linux+3 · Linux Kernel+3

Wen Xu · Published 2018-07-26 · Updated 2019-09-02 · CVE-2018-14617

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.17.11

Description The issue is related to a NULL pointer dereference and panic in the hfsplus lookup() function in fs/hfsplus/dir.c when opening a file in an hfs+ filesystem with malformed catalog data, mounted read-only without a metadata directory. This can lead to a denial of service.

Recommendations For Linux kernel versions prior to 4.17.11, update to version 4.17.11 or later to resolve the issue. As a temporary workaround, consider avoiding the use of hfs+ filesystems with malformed catalog data, or ensure they are mounted with a metadata directory when possible.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2018-2092

ALT-PU-2018-2094

ALT-PU-2019-1433

BDU:2019-02512

CVE-2018-14617

DLA-1529-1

DLA-1531-1

DSA-4308-1

OPENSUSE-SU-2018_3071-1

OPENSUSE-SU-2018_3202-1

SUSE-SU-2018:2879-1

SUSE-SU-2018:2908-1

SUSE-SU-2018:2908-2

SUSE-SU-2018:2980-1

SUSE-SU-2018:2981-1

SUSE-SU-2018:3003-1

SUSE-SU-2018:3004-1

SUSE-SU-2018:3083-1

SUSE-SU-2018:3084-1

SUSE-SU-2018:3088-1

SUSE-SU-2018:3618-1

SUSE-SU-2018:3659-1

SUSE-SU-2018:3961-1

SUSE-SU-2019:0095-1

USN-3821-1

USN-3821-2

USN-4094-1

USN-4118-1

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 661

• 🔥 https://bugzilla.kernel.org/show_bug.cgi?id=200297 · Exploit
• https://usn.ubuntu.com/4094-1 · Vendor Advisory
• https://usn.ubuntu.com/3821-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13098 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-14617 · Security Note
• https://ubuntu.com/security/CVE-2018-14617 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13100 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15216 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11884 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-13272 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-13093 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-14614 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15220 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-12818 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-10207 · Vendor Advisory