5.5

CVE-2022-48804

vt_ioctl: fix array_index_nospec in vt_setactivate

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

vt_ioctl: fix array_index_nospec in vt_setactivate

array_index_nospec ensures that an out-of-bounds value is set to zero
on the transient path. Decreasing the value by one afterwards causes
a transient integer underflow. vsa.console should be decreased first
and then sanitized with array_index_nospec.

Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh
Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU
Amsterdam.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.9.302
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.267
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.320
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.180
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.101
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.24
Linux ≫ Linux Kernel Version >= 5.16 < 5.16.10
Linux ≫ Linux Kernel Version 5.17 Update rc1
Linux ≫ Linux Kernel Version 5.17 Update rc2
Linux ≫ Linux Kernel Version 5.17 Update rc3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.22
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-191 Integer Underflow (Wrap or Wraparound)

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

https://git.kernel.org/stable/c/170325aba4608bde3e7d21c9c19b7bc266ac0885
Patch
https://git.kernel.org/stable/c/2a45a6bd1e6d651770aafff57ab3e1d3bb0b42e0
Patch
https://git.kernel.org/stable/c/61cc70d9e8ef5b042d4ed87994d20100ec8896d9
Patch
https://git.kernel.org/stable/c/6550bdf52846f85a2a3726a5aa0c7c4399f2fc02
Patch
https://git.kernel.org/stable/c/778302ca09498b448620edd372dc908bebf80bdf
Patch
https://git.kernel.org/stable/c/830c5aa302ec16b4ee641aec769462c37f802c90
Patch
https://git.kernel.org/stable/c/ae3d57411562260ee3f4fd5e875f410002341104
Patch
https://git.kernel.org/stable/c/ffe54289b02e9c732d6f04c8ebbe3b2d90d32118
Patch