CVE & CISA-KEV CatalogNVD
CVE-2018-1092
MEDIUMEPSS 78th pctl5.5
CVSS v3
Description
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
How to fix
Remediation Available
linuxDebian
Fixed in:4.15.17-1CVE-2018-1092
Fixed in:4.15.17-1CVE-2018-1092
Fixed in:4.15.17-1CVE-2018-1092
Fixed in:4.15.17-1CVE-2018-1092
linuxUbuntu
linux-awsUbuntu
linux-azureUbuntu
Fixed in:4.15.0-1013.13~16.04.2USN-3678-2
Fixed in:4.15.0-1013.13USN-3678-3
linux-gcpUbuntu
Fixed in:4.13.0-1019.23USN-3677-2
Fixed in:4.15.0-1009.9USN-3678-1
linux-hweUbuntu
Fixed in:4.13.0-45.50~16.04.1USN-3677-2
linux-image-3.13.0-157-genericUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-generic-lpaeUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-lowlatencyUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-powerpc-e500Ubuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-powerpc-e500mcUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-powerpc-smpUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-powerpc64-embUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-3.13.0-157-powerpc64-smpUbuntu
Fixed in:3.13.0-157.207USN-3754-1
linux-image-4.13.0-1019-gcpUbuntu
Fixed in:4.13.0-1019.23USN-3677-2
linux-image-4.13.0-1030-oemUbuntu
Fixed in:4.13.0-1030.33USN-3677-2
linux-image-4.13.0-45-genericUbuntu
Fixed in:4.13.0-45.50~16.04.1USN-3677-2
linux-image-4.13.0-45-generic-lpaeUbuntu
Fixed in:4.13.0-45.50~16.04.1USN-3677-2
linux-image-4.13.0-45-lowlatencyUbuntu
Fixed in:4.13.0-45.50~16.04.1USN-3677-2
linux-image-4.15.0-1009-gcpUbuntu
Fixed in:4.15.0-1009.9USN-3678-1
linux-image-4.15.0-1010-awsUbuntu
Fixed in:4.15.0-1010.10USN-3678-1
linux-image-4.15.0-1011-kvmUbuntu
Fixed in:4.15.0-1011.11USN-3678-1
linux-image-4.15.0-1012-raspi2Ubuntu
Fixed in:4.15.0-1012.13USN-3678-4
linux-image-4.15.0-23-genericUbuntu
Fixed in:4.15.0-23.25USN-3678-1
linux-image-4.15.0-23-generic-lpaeUbuntu
Fixed in:4.15.0-23.25USN-3678-1
linux-image-4.15.0-23-lowlatencyUbuntu
Fixed in:4.15.0-23.25USN-3678-1
linux-image-4.15.0-23-snapdragonUbuntu
Fixed in:4.15.0-23.25USN-3678-1
linux-image-4.4.0-1023-awsUbuntu
Fixed in:4.4.0-1023.23USN-3676-2
linux-image-4.4.0-1027-kvmUbuntu
Fixed in:4.4.0-1027.32USN-3676-1
linux-image-4.4.0-1061-awsUbuntu
Fixed in:4.4.0-1061.70USN-3676-1
linux-image-4.4.0-1091-raspi2Ubuntu
Fixed in:4.4.0-1091.99USN-3676-1
linux-image-4.4.0-1094-snapdragonUbuntu
Fixed in:4.4.0-1094.99USN-3676-1
linux-image-4.4.0-128-genericUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-image-4.4.0-128-generic-lpaeUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-image-4.4.0-128-lowlatencyUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-image-4.4.0-128-powerpc-e500mcUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-image-4.4.0-128-powerpc-smpUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-image-4.4.0-128-powerpc64-embUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-image-4.4.0-128-powerpc64-smpUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
Fixed in:4.4.0-128.154USN-3676-1
linux-kvmUbuntu
Fixed in:4.4.0-1027.32USN-3676-1
Fixed in:4.15.0-1011.11USN-3678-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-128.154~14.04.1USN-3676-2
linux-oemUbuntu
Fixed in:4.13.0-1030.33USN-3677-2
linux-raspi2Ubuntu
Fixed in:4.4.0-1091.99USN-3676-1
Fixed in:4.15.0-1012.13USN-3678-4
linux-snapdragonUbuntu
Fixed in:4.4.0-1094.99USN-3676-1
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Exploit Intelligence
2.00%probability of exploitation in 30 days
78thpercentile
Elevated risk: more likely to be exploited than 78% of all known CVEs.
References
Patch1
Third-Party Advisory2
Issue Tracking2
Related Vulnerabilities
Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-21758 | High | 7.5 | 92% | - | Fix |
| CVE-2023-21547 | High | 7.5 | 88% | - | Fix |
| CVE-2014-3470 | Medium | 4.3 | 86% | - | Fix |
| CVE-2021-44224 | High | 8.2 | 82% | - | Fix |
| CVE-2016-0742 | High | 7.5 | 82% | - | Fix |
| CVE-2009-1386 | Medium | 5.0 | 80% | - | Fix |
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.