7.8

CVE-2024-35905

bpf: Protect against int overflow for stack access size

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

bpf: Protect against int overflow for stack access size

This patch re-introduces protection against the size of access to stack
memory being negative; the access size can appear negative as a result
of overflowing its signed int representation. This should not actually
happen, as there are other protections along the way, but we should
protect against it anyway. One code path was missing such protections
(fixed in the previous patch in the series), causing out-of-bounds array
accesses in check_stack_range_initialized(). This patch causes the
verification of a program with such a non-sensical access size to fail.

This check used to exist in a more indirect way, but was inadvertendly
removed in a833a17aeac7.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.10.209 < 5.10.215
Linux ≫ Linux Kernel Version >= 5.15.148 < 5.15.154
Linux ≫ Linux Kernel Version >= 6.1.75 < 6.1.85
Linux ≫ Linux Kernel Version >= 6.6.14 < 6.6.26
Linux ≫ Linux Kernel Version >= 6.7.2 < 6.8.5
Linux ≫ Linux Kernel Version6.9 Updaterc1
Debian ≫ Debian Linux Version10.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.22% 0.127
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-129 Improper Validation of Array Index

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Mailing List
https://git.kernel.org/stable/c/203a68151e8eeb331d4a64ab78303f3a15faf103
Patch
https://git.kernel.org/stable/c/37dc1718dc0c4392dbfcb9adec22a776e745dd69
Patch
https://git.kernel.org/stable/c/3f0784b2f1eb9147973d8c43ba085c5fdf44ff69
Patch
https://git.kernel.org/stable/c/98cdac206b112bec63852e94802791e316acc2c1
Patch
https://git.kernel.org/stable/c/9970e059af471478455f9534e8c3db82f8c5496d
Patch
https://git.kernel.org/stable/c/ecc6a2101840177e57c925c102d2d29f260d37c8
Patch
https://cert-portal.siemens.com/productcert/html/ssa-265688.html