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CVE-2021-27363

CVSS v3.1 4.4 (Medium)
44% Progress
CVSS v2.0 3.6 (Low)
36% Progress
EPSS 0.06 % (27th)
0.06% Progress
Affected Products 4
Advisories 49
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the pointer to an iscsi_transport struct in the kernel module's global variables.

Weaknesses
CWE-NVD-noinfo
CVE Status
PUBLISHED
CNA
MITRE
Published Date
2021-03-07 04:15:13
(3 years ago)
Updated Date
2022-05-23 16:00:39
(2 years ago)

Affected Products

Debian

Linux

Netapp

Configuration #1

    CPE23 From Up To
  Linux Kernel 5.11.3 and prior versions cpe:2.3:o:linux:linux_kernel <= 5.11.3

Configuration #2

    CPE23 From Up To
  Debian Linux 9.0 cpe:2.3:o:debian:debian_linux:9.0

Configuration #3

    CPE23 From Up To
  Netapp Cloud Backup cpe:2.3:a:netapp:cloud_backup:-
  Netapp Solidfire Baseboard Management Controller Firmware cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-