CVE-2023-1855

MEDIUM

6.3

CVSS Score

Published: April 5, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:28 AM UTC

3 products affected across 3 vendorsLinux KernelDebian LinuxKernel

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Severity

MEDIUM6.3

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A use-after-free flaw was found in xgene_hwmon_remove in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel Driver (xgene-hwmon). This flaw could allow a local attacker to crash the system due to a race problem. This vulnerability could even lead to a kernel information leak problem.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux · Debiandrupal

95%

10.0

Linux Kernel · Linux

95%

v < 6.34.15 ≤ v < 4.19.2794.20 ≤ v < 5.4.2384.9 ≤ v < 4.14.3115.11 ≤ v < 5.15.1045.16 ≤ v < 6.1.215.5 ≤ v < 5.10.1766.2 ≤ v < 6.2.86.3 rc1 6.3 rc2 6.3 rc3

Affected range stops below 4.14.311, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.19.279, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.10.176, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.15.104, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.238, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.1.21, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.3, so it looks safe — our inference, not a vendor statement

Kernel · Red Hat

60%

Linux kernel prior to Kernel 6.3 RC3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/torvalds/linux/commit/cb090e64cf25602b9adaf32d5dfc9c8bec493cd1

References (4)

Patch

Source: [email protected]

https://github.com/torvalds/linux/commit/cb090e64cf25602b9adaf32d5dfc9c8bec493cd1

Mailing ListThird Party Advisory

Source: [email protected]

https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

Mailing ListThird Party Advisory

Source: [email protected]

https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

Source: [email protected]

https://lore.kernel.org/all/20230318122758.2140868-1-linux%40roeck-us.net/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMCISA-ADP

Attack Vector: LOCAL
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-416

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