7.8

CVE-2023-53652

vdpa: Add features attr to vdpa_nl_policy for nlattr length check

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

vdpa: Add features attr to vdpa_nl_policy for nlattr length check

The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.

That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.

This patch adds the missing nla_policy for vdpa features attr to avoid
such bugs.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.47
Linux ≫ Linux Kernel Version >= 6.2 < 6.4.12
Linux ≫ Linux Kernel Version6.5 Updaterc1
Linux ≫ Linux Kernel Version6.5 Updaterc2
Linux ≫ Linux Kernel Version6.5 Updaterc3
Linux ≫ Linux Kernel Version6.5 Updaterc4
Linux ≫ Linux Kernel Version6.5 Updaterc5
Linux ≫ Linux Kernel Version6.5 Updaterc6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.097
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.

https://git.kernel.org/stable/c/44b508cc96889e61799cc0fc6c00766a54f3ab5a
Patch
https://git.kernel.org/stable/c/645d17e06c502e71b880b2b854930e5a64014640
Patch
https://git.kernel.org/stable/c/79c8651587504ba263d2fd67fd4406240fb21f69
Patch