AZL-6532
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6532.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-6532
- Upstream
- Published
- 2021-03-07T04:15:13Z
- Modified
- 2026-04-21T04:37:34Z
- Severity
-
- 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
- Summary
- CVE-2021-27363 affecting package kernel for versions less than 5.10.78.1-1
- Details
-
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.
- References