CVE-2018-7755 — Sensitive Information Exposure in Linux
Severity
5.5MEDIUMNVD
OSV7.8OSV7.1
EPSS
0.0%
top 99.64%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 8
Latest updateMay 14
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
Also affects: Ubuntu Linux 12.04, 14.04, 16.04, 17.10, 18.04
🔴Vulnerability Details
11GHSA▶
GHSA-446x-f9hh-hqmm: An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy↗2022-05-14