CVE-2018-1092
CVSS V2 High 7.1
CVSS V3 Medium 5.5
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.
Overview
- CVE ID
- CVE-2018-1092
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2018-04-02T03:29:00
- Last Modified Date
- 2023-02-12T23:32:36
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.15.15 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:C
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 7.1
- Severity
- HIGH
- Exploitability Score
- 8.6
- Impact Score
- 6.9
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
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-1092 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1092 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:54:33 | Added to TrackCVE | |||
| 2022-12-03 04:06:46 | 2018-04-02T03:29Z | 2018-04-02T03:29:00 | CVE Published Date | updated |
| 2022-12-03 04:06:46 | 2018-10-31T10:30:51 | CVE Modified Date | updated | |
| 2022-12-03 04:06:46 | Modified | Vulnerability Status | updated | |
| 2023-02-02 22:08:08 | 2023-02-02T21:18:16 | CVE Modified Date | updated | |
| 2023-02-02 22:08:08 | 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. | The Linux kernel is vulnerable to a NULL pointer dereference in the ext4/mballoc.c:ext4_process_freed_data() function. An attacker could trick a legitimate user or a privileged attacker could exploit this by mounting a crafted ext4 image to cause a kernel panic. | Description | updated |
| 2023-02-02 22:08:09 | References | updated | ||
| 2023-02-13 00:07:39 | 2023-02-12T23:32:36 | CVE Modified Date | updated | |
| 2023-02-13 00:07:39 | The Linux kernel is vulnerable to a NULL pointer dereference in the ext4/mballoc.c:ext4_process_freed_data() function. An attacker could trick a legitimate user or a privileged attacker could exploit this by mounting a crafted ext4 image to cause a kernel panic. | 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. | Description | updated |