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CVE-2018-7755

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.

Risk Information

Base Score
5.5
MODERATE
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
0.007

Associated Vulnerability

VulnerabilityOS Platform
Linux kernel (USN-3695-1) linux-image-aws_4.15.0.1011.11_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-gcp_4.15.0.1010.12_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-gke_4.15.0.1010.12_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-kvm_4.15.0.1012.12_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-oem_4.15.0.1009.11_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-azure_4.15.0.1014.14_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-1010-gcp_4.15.0-1010.10_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-1011-aws_4.15.0-1011.11_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-1012-kvm_4.15.0-1012.12_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-1014-azure_4.15.0-1014.14_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-24-generic_4.15.0-24.26_i386.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-24-generic_4.15.0-24.26_amd64.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-24-lowlatency_4.15.0-24.26_i386.debLinux
Linux kernel (USN-3695-1) linux-image-4.15.0-24-lowlatency_4.15.0-24.26_amd64.debLinux
Linux kernel for Microsoft Azure Cloud systems (USN-3695-2) linux-image-4.15.0-1014-azure_4.15.0-1014.14~16.04.1_amd64.debLinux
Linux kernel for Microsoft Azure Cloud systems (USN-3695-2) linux-image-4.15.0-24-generic_4.15.0-24.26~16.04.1_i386.debLinux
Linux kernel for Microsoft Azure Cloud systems (USN-3695-2) linux-image-4.15.0-24-generic_4.15.0-24.26~16.04.1_amd64.debLinux
Linux kernel for Microsoft Azure Cloud systems (USN-3695-2) linux-image-4.15.0-24-lowlatency_4.15.0-24.26~16.04.1_i386.debLinux
Linux kernel for Microsoft Azure Cloud systems (USN-3695-2) linux-image-4.15.0-24-lowlatency_4.15.0-24.26~16.04.1_amd64.debLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update bpftool-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-abi-whitelists-3.10.0-1062.el7.noarch.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-debug-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-debug-devel-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-devel-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-doc-3.10.0-1062.el7.noarch.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-headers-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-tools-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-tools-libs-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update kernel-tools-libs-devel-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update perf-3.10.0-1062.el7.x86_64.rpmLinux
(RHSA-2019:2029) kernel security, bug fix, and enhancement update python-perf-3.10.0-1062.el7.x86_64.rpmLinux
Dtrace-modules-3.8.13-118.28.1.el6uek update (ELSA-2018-4300) dtrace-modules-3.8.13-118.28.1.el6uek-0.4.5-3.el6.x86_64.rpmLinux
Dtrace-modules-3.8.13-118.28.1.el7uek update (ELSA-2018-4300) dtrace-modules-3.8.13-118.28.1.el7uek-0.4.5-3.el7.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-debuginfo-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-debuginfo-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-debugsource-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-devel-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-devel-azure-4.12.14-16.97.1.noarch.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-source-azure-4.12.14-16.97.1.noarch.rpmLinux
SUSE-SU-2022:1651-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-syms-azure-4.12.14-16.97.1.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-base-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-base-debuginfo-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-debuginfo-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-debugsource-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-devel-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-devel-debuginfo-4.12.14-122.121.2.x86_64.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-devel-4.12.14-122.121.2.noarch.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-macros-4.12.14-122.121.2.noarch.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-source-4.12.14-122.121.2.noarch.rpmLinux
SUSE-SU-2022:1686-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-syms-4.12.14-122.121.2.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234