cbcvebase.
CVE-2022-48828
published 2024-07-16

CVE-2022-48828: In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a loff_t, which is a signed 64-bit type…

PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.63%
46.6th percentile
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a loff_t, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Thus there is a range of valid file size values an NFS client can send that is already larger than Linux can handle. Currently decode_fattr4() dumps a full u64 value into ia_size. If that value happens to be larger than S64_MAX, then ia_size underflows. I'm about to fix up the NFSv3 behavior as well, so let's catch the underflow in the common code path: nfsd_setattr().

Affected

18 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.16.10-1 (bookworm)linux 5.16.10-1 (bookworm)
linuxlinux——
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d2211e6e34d0755f35e2f8c22d81999fa81cfc71d2211e6e34d0755f35e2f8c22d81999fa81cfc71
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 38d02ba22e43b6fc7d291cf724bc6e3b7be6626b38d02ba22e43b6fc7d291cf724bc6e3b7be6626b
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8e0ecaf7a7e57b30284d6b3289cc436100fadc488e0ecaf7a7e57b30284d6b3289cc436100fadc48
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < da22ca1ad548429d7822011c54cfe210718e0aa7da22ca1ad548429d7822011c54cfe210718e0aa7
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e6faac3f58c7c4176b66f63def17a34232a17b0ee6faac3f58c7c4176b66f63def17a34232a17b0e
linuxlinux_kernel< 5.4.2955.4.295
linuxlinux_kernel——
linuxlinux_kernel——
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 5.16.10-15.16.10-1
linuxlinux_kernel>= 0 < 5.16.10-15.16.10-1
linuxlinux_kernel>= 0 < 5.16.10-15.16.10-1
linuxlinux_kernel>= 5.11 < 5.15.245.15.24
linuxlinux_kernel>= 5.16 < 5.16.105.16.10
linuxlinux_kernel>= 5.5 < 5.10.2205.10.220

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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