cbcvebase.
CVE-2023-52449
published 2024-02-22

CVE-2023-52449: In the Linux kernel, the following vulnerability has been resolved: mtd: Fix gluebi NULL pointer dereference caused by ftl notifier If both ftl.ko and…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.5th percentile
In the Linux kernel, the following vulnerability has been resolved: mtd: Fix gluebi NULL pointer dereference caused by ftl notifier If both ftl.ko and gluebi.ko are loaded, the notifier of ftl triggers NULL pointer dereference when trying to access ‘gluebi->desc’ in gluebi_read(). ubi_gluebi_init ubi_register_volume_notifier ubi_enumerate_volumes ubi_notify_all gluebi_notify nb->notifier_call() gluebi_create mtd_device_register mtd_device_parse_register add_mtd_device blktrans_notify_add not->add() ftl_add_mtd tr->add_mtd() scan_header mtd_read mtd_read_oob mtd_read_oob_std gluebi_read mtd->read() gluebi->desc - NULL Detailed reproduction information available at the Link [1], In the normal case, obtain gluebi->desc in the gluebi_get_device(), and access gluebi->desc in the gluebi_read(). However, gluebi_get_device() is not executed in advance in the ftl_add_mtd() process, which leads to NULL pointer dereference. The solution for the gluebi module is to run jffs2 on the UBI volume without considering working with ftl or mtdblock [2]. Therefore, this problem can be avoided by preventing gluebi from creating the mtdblock device after creating mtd partition of the type MTD_UBIVOLUME.

Affected

24 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.76-1 (bookworm)linux 6.1.76-1 (bookworm)
linuxlinux
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < aeba358bcc8ffddf9b4a9bd0e5ec9eb338d46022aeba358bcc8ffddf9b4a9bd0e5ec9eb338d46022
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < 1bf4fe14e97cda621522eb2f28b0a4e87c5b07451bf4fe14e97cda621522eb2f28b0a4e87c5b0745
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < 001a3f59d8c914ef8273461d4bf495df384cc5f8001a3f59d8c914ef8273461d4bf495df384cc5f8
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < d8ac2537763b54d278b80b2b080e1652523c7d4cd8ac2537763b54d278b80b2b080e1652523c7d4c
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < 5389407bba1eab1266c6d83e226fb0840cb98dd55389407bba1eab1266c6d83e226fb0840cb98dd5
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < cfd7c9d260dc0a3baaea05a122a19ab91e193c65cfd7c9d260dc0a3baaea05a122a19ab91e193c65
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < b36aaa64d58aaa2f2cbc8275e89bae76a2b6c3dcb36aaa64d58aaa2f2cbc8275e89bae76a2b6c3dc
linuxlinux>= 2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba < a43bdc376deab5fff1ceb93dca55bcab8dbdc1d6a43bdc376deab5fff1ceb93dca55bcab8dbdc1d6
linuxlinux_kernel>= 0 < 5.10.209-15.10.209-1
linuxlinux_kernel>= 0 < 6.1.76-16.1.76-1
linuxlinux_kernel>= 0 < 6.6.15-16.6.15-1
linuxlinux_kernel>= 0 < 6.6.15-16.6.15-1
linuxlinux_kernel>= 0 < 5.4.0-176.1965.4.0-176.196
linuxlinux_kernel>= 0 < 5.15.0-102.1125.15.0-102.112
linuxlinux_kernel>= 0 < 4.4.0-257.2914.4.0-257.291
linuxlinux_kernel>= 2.6.31 < 4.19.3064.19.306
linuxlinux_kernel>= 4.20 < 5.4.2685.4.268
linuxlinux_kernel>= 5.11.0 < 5.15.1485.15.148
linuxlinux_kernel>= 5.16.0 < 6.1.756.1.75
linuxlinux_kernel>= 5.5.0 < 5.10.2095.10.209
linuxlinux_kernel>= 6.2.0 < 6.6.146.6.14
linuxlinux_kernel>= 6.7.0 < 6.7.26.7.2

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.1HIGH
vendor_ubuntu7.5HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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