CVE-2018-13093

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5
Description
An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.
Overview
  • CVE ID
  • CVE-2018-13093
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-07-03T10:29:00
  • Last Modified Date
  • 2019-08-06T17:15:21
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.17.3
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/torvalds/linux/commit/afca6c5b2595fc44383919fba740c194b0b76aff Patch
https://bugzilla.kernel.org/show_bug.cgi?id=199367 Issue Tracking Third Party Advisory
https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/commit/?h=for-next&id=afca6c5b2595fc44383919fba740c194b0b76aff Patch Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2043
https://access.redhat.com/errata/RHSA-2019:2029
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-13093
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-13093
History
Created Old Value New Value Data Type Notes
2022-05-10 17:39:31 Added to TrackCVE
2022-12-03 08:54:09 2018-07-03T10:29Z 2018-07-03T10:29:00 CVE Published Date updated
2022-12-03 08:54:09 2019-08-06T17:15:21 CVE Modified Date updated
2022-12-03 08:54:09 Modified Vulnerability Status updated