CVE-2018-14617 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer DereferenceCWE-400 — Uncontrolled Resource Consumption16 documents7 sources
Severity
5.5MEDIUMNVD
OSV3.3
EPSS
0.3%
top 50.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxCanonical Ubuntu Linux+1 more
Timeline
PublishedJul 27
Latest updateMay 14

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 vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶Debianlinux/linux_kernel< 4.18.8-1+3
▶Ubuntulinux/linux_kernel< 4.4.0-139.165+1
▶NVDlinux/linux_kernel4.17.10
▶debiandebian/linux< linux 4.18.8-1 (bookworm)

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04

Patches

Patch: www.spinics.net ↗Patch: www.spinics.net ↗

🔴Vulnerability Details

6
GHSA
GHSA-qwp3-c8jm-p6v6: An issue was discovered in the Linux kernel through 4↗2022-05-14
▶
OSV
linux-aws vulnerabilities↗2019-09-02
▶
OSV
linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2019-08-13
▶
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities↗2018-11-14
▶
OSV
linux-lts-xenial, linux-aws vulnerabilities↗2018-11-14
▶

📋Vendor Advisories

6
Ubuntu
Linux kernel (AWS) vulnerabilities↗2019-09-02
▶
Ubuntu
Linux kernel vulnerabilities↗2019-08-13
▶
Ubuntu
Linux kernel vulnerabilities↗2018-11-14
▶
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities↗2018-11-14
▶
Red Hat
kernel: NULL pointer dereference in fs/hfsplus/dir.c:hfsplus_lookup() when operating on a file in a crafted hfs+ image↗2018-06-27
▶

💬Community

3
Bugzilla
CVE-2018-14617 kernel: NULL pointer dereference in fs/hfsplus/dir.c:hfsplus_lookup() when operating on a file in a crafted hfs+ image [fedora-all]↗2018-08-02
▶
Bugzilla
CVE-2018-14617 kernel: NULL pointer dereference in fs/hfsplus/dir.c:hfsplus_lookup() when operating on a file in a crafted hfs+ image [fedora-all]↗2018-07-31
▶
Bugzilla
CVE-2018-14617 kernel: NULL pointer dereference in fs/hfsplus/dir.c:hfsplus_lookup() when operating on a file in a crafted hfs+ image↗2018-07-31
▶