7.8

CVE-2025-37927

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

iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid

There is a string parsing logic error which can lead to an overflow of hid
or uid buffers. Comparing ACPIID_LEN against a total string length doesn't
take into account the lengths of individual hid and uid buffers so the
check is insufficient in some cases. For example if the length of hid
string is 4 and the length of the uid string is 260, the length of str
will be equal to ACPIID_LEN + 1 but uid string will overflow uid buffer
which size is 256.

The same applies to the hid string with length 13 and uid string with
length 250.

Check the length of hid and uid strings separately to prevent
buffer overflow.

Found by Linux Verification Center (linuxtesting.org) with SVACE.
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.7 < 5.4.294
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.238
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.182
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.138
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.90
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.28
Linux ≫ Linux Kernel Version >= 6.13 < 6.14.6
Linux ≫ Linux Kernel Version6.15 Updaterc1
Linux ≫ Linux Kernel Version6.15 Updaterc2
Linux ≫ Linux Kernel Version6.15 Updaterc3
Linux ≫ Linux Kernel Version6.15 Updaterc4
Debian ≫ Debian Linux Version11.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.032
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

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