CVE-2023-1652

high

Published 2023-11-07 · Modified 2026-05-12

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CVSS v3

7.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.1

Description

A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c in the NFS filesystem in the Linux Kernel. This issue could allow a local attacker to crash the system or it may lead to a kernel information leak problem.

Predictions

Exploit likelihood

70%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Red Hat Errata — Red Hat Inc. · View original ↗ · Open-Errata-API

Description Kernel: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c Red Hat statement Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. CVSS v3: 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) Errata…

Workaround

for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Description

Kernel: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c

Red Hat statement

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS v3: 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Errata / fixed releases

Product	Package	Advisory	Released
Red Hat Enterprise Linux 9	`kernel-0:5.14.0-362.8.1.el9_3`	RHSA-2023:6583	2023-11-07T00:00:00Z
Red Hat Enterprise Linux 9	`kernel-0:5.14.0-362.8.1.el9_3`	RHSA-2023:6583	2023-11-07T00:00:00Z
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	`kernel-0:5.14.0-70.136.1.el9_0`	RHSA-2025:10174	2025-07-01T00:00:00Z
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	`kernel-rt-0:5.14.0-70.136.1.rt21.208.el9_0`	RHSA-2025:10193	2025-07-02T00:00:00Z
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	`kernel-0:5.14.0-284.124.1.el9_2`	RHSA-2025:10671	2025-07-09T00:00:00Z
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	`kernel-rt-0:5.14.0-284.124.1.rt14.409.el9_2`	RHSA-2025:10675	2025-07-09T00:00:00Z

Package state

Product	Package	State
Red Hat Enterprise Linux 6	`kernel`	Not affected
Red Hat Enterprise Linux 7	`kernel`	Not affected
Red Hat Enterprise Linux 7	`kernel-rt`	Not affected
Red Hat Enterprise Linux 8	`kernel`	Not affected
Red Hat Enterprise Linux 8	`kernel-rt`	Not affected
Red Hat Enterprise Linux 9	`kernel-rt`	Affected

Apply commands

bash fix

Apply RHSA-2023:6583 for Red Hat Enterprise Linux 9

yum update -y kernel
# or:
dnf upgrade -y kernel

Affected

Vendor	Product	Version
redhat	Red Hat Enterprise Linux 6	`Not affected`
redhat	Red Hat Enterprise Linux 7	`Not affected`
redhat	Red Hat Enterprise Linux 7	`Not affected`
redhat	Red Hat Enterprise Linux 8	`Not affected`
redhat	Red Hat Enterprise Linux 8	`Not affected`
redhat	Red Hat Enterprise Linux 9	`Affected`

OS impact

Linux kernel Affected 2 releases

Version	Status	Fixed in
6.2	Affected	—
—	Affected	`5.15.91`

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Red Hat Mixed 2 releases

Version	Status	Fixed in
9.0	Affected	—
9	Fixed	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`6.1.11-1`
sid	Fixed	`6.1.11-1`
forky	Fixed	`6.1.11-1`
bullseye	Fixed	`0`
bookworm	Fixed	`6.1.11-1`

References

CWEs

CWE-416

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.