4.4

CVE-2021-27363

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 5.11.3
Debian ≫ Debian Linux Version9.0
Netapp ≫ Cloud Backup Version-
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.71% 0.487
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.4 1.8 2.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
nvd@nist.gov 3.6 3.9 4.9
AV:L/AC:L/Au:N/C:P/I:N/A:P
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
Third Party Advisory
Mailing List
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
Third Party Advisory
VDB Entry
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210409-0001/
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/03/06/1
Patch
Third Party Advisory
Mailing List
https://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.html
Third Party Advisory
Exploit
https://bugzilla.suse.com/show_bug.cgi?id=1182716
Third Party Advisory
Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=688e8128b7a92df982709a4137ea4588d16f24aa
Patch
Vendor Advisory
Mailing List