cbcvebase.
CVE-2024-38621
published 2024-06-21

CVE-2024-38621: In the Linux kernel, the following vulnerability has been resolved: media: stk1160: fix bounds checking in stk1160_copy_video() The subtract in this condition…

PriorityP431high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.27%
19.2th percentile
In the Linux kernel, the following vulnerability has been resolved: media: stk1160: fix bounds checking in stk1160_copy_video() The subtract in this condition is reversed. The ->length is the length of the buffer. The ->bytesused is how many bytes we have copied thus far. When the condition is reversed that means the result of the subtraction is always negative but since it's unsigned then the result is a very high positive value. That means the overflow check is never true. Additionally, the ->bytesused doesn't actually work for this purpose because we're not writing to "buf->mem + buf->bytesused". Instead, the math to calculate the destination where we are writing is a bit involved. You calculate the number of full lines already written, multiply by two, skip a line if necessary so that we start on an odd numbered line, and add the offset into the line. To fix this buffer overflow, just take the actual destination where we are writing, if the offset is already out of bounds print an error and return. Otherwise, write up to buf->length bytes.

Affected

26 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.94-1 (bookworm)linux 6.1.94-1 (bookworm)
linuxlinux
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < f6a392266276730bea893b55d12940e32a25f56af6a392266276730bea893b55d12940e32a25f56a
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < ecf4ddc3aee8ade504c4d36b7b4053ce6093e200ecf4ddc3aee8ade504c4d36b7b4053ce6093e200
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7a16775828aaed1c54ff4e6fe83e8e4d5c6a50cb7
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < 7532bcec0797adfa08791301c3bcae14141db3bd7532bcec0797adfa08791301c3bcae14141db3bd
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < b504518a397059e1d55c521ba0ea2b545a6c4b52b504518a397059e1d55c521ba0ea2b545a6c4b52
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < d410017a7181cb55e4a5c810b32b75e4416c6808d410017a7181cb55e4a5c810b32b75e4416c6808
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < a08492832cc4cacc24e0612f483c86ca899b9261a08492832cc4cacc24e0612f483c86ca899b9261
linuxlinux>= 9cb2173e6ea8f2948bd1367c93083a2500fcf08f < faa4364bef2ec0060de381ff028d1d836600a381faa4364bef2ec0060de381ff028d1d836600a381
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 6.1.94-16.1.94-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 5.4.0-192.2125.4.0-192.212
linuxlinux_kernel>= 0 < 5.15.0-121.1315.15.0-121.131
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44
linuxlinux_kernel>= 0 < 4.4.0-260.2944.4.0-260.294
linuxlinux_kernel>= 0 < 4.15.0-230.2424.15.0-230.242
linuxlinux_kernel>= 3.7 < 4.19.3164.19.316
linuxlinux_kernel>= 4.20 < 5.4.2785.4.278
linuxlinux_kernel>= 5.11 < 5.15.1615.15.161
linuxlinux_kernel>= 5.16 < 6.1.936.1.93
linuxlinux_kernel>= 5.5 < 5.10.2195.10.219
linuxlinux_kernel>= 6.2 < 6.6.336.6.33

CVSS provenance

nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
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