CVE-2023-54279 - Vulnerability Details

- MIPS: fw: Allow firmware to pass a empty env

Description

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

MIPS: fw: Allow firmware to pass a empty env

fw_getenv will use env entry to determine style of env,
however it is legal for firmware to just pass a empty list.

Check if first entry exist before running strchr to avoid
null pointer dereference.

Published: 2025-12-30

Score: n/a

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< f334b31625683418aaa2a335470eec950a95a254
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< 830181ddced5a05a711dc9da8043203b1f33a77e
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< 0f91290774c798199ba4b8df93de5c3156b5163d
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< 47e61cadc7a5f3dffd42d2d6fda81be163f1ab82
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< 3ef93b7bd9e042db240843f24a80e14da38c6830
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< a6b54af407873227caef6262e992f5422cdcb6ae
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< ad79828f133e98585ab2236cad04a55eb7141bbe
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< aeed787bbbbe1b842beec9a065a36c915226f704
`14aecdd419217e041fb5dd2749d11f58503bdf62`	affected	< ee1809ed7bc456a72dc8410b475b73021a3a68d5

Linux

affected

Version	Status	Constraints
`3.10`	affected	—
`0`	unaffected	< 3.10
`4.14.315`	unaffected	≤ 4.14.*
`4.19.283`	unaffected	≤ 4.19.*
`5.4.243`	unaffected	≤ 5.4.*
`5.10.180`	unaffected	≤ 5.10.*
`5.15.111`	unaffected	≤ 5.15.*
`6.1.28`	unaffected	≤ 6.1.*
`6.2.15`	unaffected	≤ 6.2.*
`6.3.2`	unaffected	≤ 6.3.*
`6.4`	unaffected	≤ *

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

No advisories yet.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00064.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/0f91290774c798199ba4b8df93de5c3156b5163d
https://git.kernel.org/stable/c/3ef93b7bd9e042db240843f24a80e14da38c6830
https://git.kernel.org/stable/c/47e61cadc7a5f3dffd42d2d6fda81be163f1ab82
https://git.kernel.org/stable/c/830181ddced5a05a711dc9da8043203b1f33a77e
https://git.kernel.org/stable/c/a6b54af407873227caef6262e992f5422cdcb6ae
https://git.kernel.org/stable/c/ad79828f133e98585ab2236cad04a55eb7141bbe
https://git.kernel.org/stable/c/aeed787bbbbe1b842beec9a065a36c915226f704
https://git.kernel.org/stable/c/ee1809ed7bc456a72dc8410b475b73021a3a68d5
https://git.kernel.org/stable/c/f334b31625683418aaa2a335470eec950a95a254
https://lore.kernel.org/linux-cve-announce/2025123003-CVE-2023-54279-1dfa@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-54279
https://www.cve.org/CVERecord?id=CVE-2023-54279

History

Wed, 31 Dec 2025 12:15:00 +0000

Type	Values Removed	Values Added
References		https://lore.kernel.org/linux-cve-announce/2025123003-CVE-2023-54279-1dfa@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2023-54279 https://www.cve.org/CVERecord?id=CVE-2023-54279
Metrics	threat_severity `None`	threat_severity `Moderate`

Tue, 30 Dec 2025 12:30:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: MIPS: fw: Allow firmware to pass a empty env fw_getenv will use env entry to determine style of env, however it is legal for firmware to just pass a empty list. Check if first entry exist before running strchr to avoid null pointer dereference.
Title		MIPS: fw: Allow firmware to pass a empty env
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/0f91290774c798199ba4b8df93de5c3156b5163d https://git.kernel.org/stable/c/3ef93b7bd9e042db240843f24a80e14da38c6830 https://git.kernel.org/stable/c/47e61cadc7a5f3dffd42d2d6fda81be163f1ab82 https://git.kernel.org/stable/c/830181ddced5a05a711dc9da8043203b1f33a77e https://git.kernel.org/stable/c/a6b54af407873227caef6262e992f5422cdcb6ae https://git.kernel.org/stable/c/ad79828f133e98585ab2236cad04a55eb7141bbe https://git.kernel.org/stable/c/aeed787bbbbe1b842beec9a065a36c915226f704 https://git.kernel.org/stable/c/ee1809ed7bc456a72dc8410b475b73021a3a68d5 https://git.kernel.org/stable/c/f334b31625683418aaa2a335470eec950a95a254

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-12-30T12:16:07.018Z

Updated: 2026-01-05T11:37:12.794Z

Reserved: 2025-12-30T12:06:44.524Z

Link: CVE-2023-54279

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2025-12-30T13:16:16.860

Modified: 2026-04-15T00:35:42.020

Link: CVE-2023-54279

Redhat

Severity : Moderate

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2023-54279 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

Tracking

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