CVE-2018-7755
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy.c in the Linux kernel through 4.15.7. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR.
Overview
- CVE ID
- CVE-2018-7755
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2018-03-08T07:29:01
- Last Modified Date
- 2018-10-04T10:29:16
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 4.15.7 | |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://lkml.org/lkml/2018/3/7/1116 | Exploit Third Party Advisory |
| https://usn.ubuntu.com/3698-2/ | Third Party Advisory |
| https://usn.ubuntu.com/3697-2/ | Third Party Advisory |
| https://usn.ubuntu.com/3697-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3696-2/ | Third Party Advisory |
| https://usn.ubuntu.com/3696-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3695-2/ | Third Party Advisory |
| https://usn.ubuntu.com/3695-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3698-1/ | Third Party Advisory |
| https://www.debian.org/security/2018/dsa-4308 | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html | |
| https://access.redhat.com/errata/RHSA-2019:2043 | |
| https://access.redhat.com/errata/RHSA-2019:2029 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-7755 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7755 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 18:36:15 | Added to TrackCVE | |||
| 2022-12-03 03:07:44 | 2018-03-08T07:29Z | 2018-03-08T07:29:01 | CVE Published Date | updated |
| 2022-12-03 03:07:44 | 2018-10-04T10:29:16 | CVE Modified Date | updated | |
| 2022-12-03 03:07:44 | Modified | Vulnerability Status | updated |