CVE-2023-0266

Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel

HIGH 7.9CISA KEV ↗Exploited per ENISA since 2023-03-30

At a glance

Source
NVD
EPSS
EPSS 3.67 % · percentile 90 ()
State
PUBLISHED
Published
Updated
Assigner
Google
NVD status
Analyzed

Description

A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit 56b88b50565cd8b946a2d00b0c83927b7ebb055e

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.9CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:HGoogle
CVSS 3.1HIGH 7.9CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:HNVD · cve-coordination@google.com (Secondary)
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/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 · Linux Kernelaffected 4.14 < 56b88b50565cd8b946a2d00b0c83927b7ebb055e

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
CISA Known Exploited VulnerabilitiesCC0 1.0
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