7.1

CVE-2022-49032

iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw

In the Linux kernel, the following vulnerability has been resolved:

iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw

KASAN report out-of-bounds read as follows:

BUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380
Read of size 4 at addr ffffffffc00e4658 by task cat/278

Call Trace:
 afe4404_read_raw
 iio_read_channel_info
 dev_attr_show

The buggy address belongs to the variable:
 afe4404_channel_leds+0x18/0xffffffffffffe9c0

This issue can be reproduce by singe command:

 $ cat /sys/bus/i2c/devices/0-0058/iio\:device0/in_intensity6_raw

The array size of afe4404_channel_leds and afe4404_channel_offdacs
are less than channels, so access with chan->address cause OOB read
in afe4404_[read|write]_raw. Fix it by moving access before use them.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.8 < 4.9.335
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.301
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.268
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.226
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.158
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.82
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.12
Linux ≫ Linux Kernel Version6.1 Updaterc1
Linux ≫ Linux Kernel Version6.1 Updaterc2
Linux ≫ Linux Kernel Version6.1 Updaterc3
Linux ≫ Linux Kernel Version6.1 Updaterc4
Linux ≫ Linux Kernel Version6.1 Updaterc5
Linux ≫ Linux Kernel Version6.1 Updaterc6
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.153
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/113c08030a89aaf406f8a1d4549d758a67c2afba
Patch
https://git.kernel.org/stable/c/3f566b626029ca8598d48e5074e56bb37399ca1b
Patch
https://git.kernel.org/stable/c/5eb114f55b37dbc0487aa9c1913b81bb7837f1c4
Patch
https://git.kernel.org/stable/c/68de7da092f38395dde523f2e5db26eba6c23e28
Patch
https://git.kernel.org/stable/c/d45d9f45e7b1365fd0d9bf14680d6d5082a590d1
Patch
https://git.kernel.org/stable/c/f5575041ec15310bdc50c42b8b22118cc900226e
Patch
https://git.kernel.org/stable/c/f7419fc42afc035f6b29ce713e17dcd2000c833f
Patch
https://git.kernel.org/stable/c/fc92d9e3de0b2d30a3ccc08048a5fad533e4672b
Patch