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CVE-2018-7755

CVSS v3.0 5.5 (Medium)
55% Progress
CVSS v2.0 2.1 (Low)
21% Progress
EPSS 0.08 % (33th)
0.08% Progress
Affected Products 2
Advisories 28
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2018-03-08 07:29:01
(6 years ago)
Updated Date
2018-10-04 10:29:16
(6 years ago)

Affected Products

Canonical

Linux

Configuration #1

    CPE23 From Up To
  Linux Kernel 4.15.7 and prior versions cpe:2.3:o:linux:linux_kernel <= 4.15.7

Configuration #2

    CPE23 From Up To
  Canonical Ubuntu Linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm
  Canonical Ubuntu Linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts
  Canonical Ubuntu Linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts
  Canonical Ubuntu Linux 17.10 cpe:2.3:o:canonical:ubuntu_linux:17.10
  Canonical Ubuntu Linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts