CVE-2021-27363
Vulnerability from cvelistv5
Published
2021-03-07 03:55
Modified
2024-08-03 20:48
Severity ?
Summary
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
cve@mitre.orghttp://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.htmlThird Party Advisory, VDB Entry
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2021/03/06/1Mailing List, Patch, Third Party Advisory
cve@mitre.orghttps://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.htmlExploit, Third Party Advisory
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1182716Issue Tracking, Third Party Advisory
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=688e8128b7a92df982709a4137ea4588d16f24aaMailing List, Patch, Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2021/03/msg00035.htmlThird Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20210409-0001/Third Party Advisory
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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