vdpa: Add features attr to vdpa_nl_policy for nlattr length check (Linux Linux)

CVE-2023-53652
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.22 % · percentile 12 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 90fea5a800c3dd80fb8ad9a02929bcef5fde42b8 < 44b508cc96889e61799cc0fc6c00766a54f3ab5a ; affected 90fea5a800c3dd80fb8ad9a02929bcef5fde42b8 < 645d17e06c502e71b880b2b854930e5a64014640 ; affected 90fea5a800c3dd80fb8ad9a02929bcef5fde42b8 < 79c8651587504ba263d2fd67fd4406240fb21f69
Linux · Linuxaffected 6.1 ; unaffected 0 < 6.1 ; unaffected 6.1.47 ≤ 6.1.* ; unaffected 6.4.12 ≤ 6.4.* ; unaffected 6.5 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD