kernel: OOB access in the Linux kernel's XFS subsystem
Published May 15, 2023
7.8
HIGHCVSS 3.1
EPSS 0.49%
Description
An out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or potentially escalate their privileges on the system.
Affected products
- Vendor n/a Product Kernel Defaultn/a
- Version Linux kernel 6.4-rc1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Kernel | n/a |
|
Configuration 1
- < 6.4
Configuration 2
- 11.0
- 12.0
Configuration 3
- n/a
Configuration 4
- n/a
Configuration 5
- n/a
Configuration 6
- n/a
Configuration 7
- n/a
No data.
Red Hat Enterprise Linux 8
kernel-0:4.18.0-477.21.1.el8_8
Fixed · RHSA-2023:4517
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-477.21.1.rt7.284.el8_8
Fixed · RHSA-2023:4541
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
kernel-0:4.18.0-147.87.1.el8_1
Fixed · RHSA-2023:4515
Red Hat Enterprise Linux 8.2 Advanced Update Support
kernel-0:4.18.0-193.113.1.el8_2
Fixed · RHSA-2023:4815
Red Hat Enterprise Linux 8.2 Telecommunications Update Service
kernel-0:4.18.0-193.113.1.el8_2
Fixed · RHSA-2023:4815
Red Hat Enterprise Linux 8.2 Telecommunications Update Service
kernel-rt-0:4.18.0-193.113.1.rt13.164.el8_2
Fixed · RHSA-2023:4817
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
kernel-0:4.18.0-193.113.1.el8_2
Fixed · RHSA-2023:4815
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
kernel-0:4.18.0-305.103.1.el8_4
Fixed · RHSA-2023:4962
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
kernel-0:4.18.0-305.103.1.el8_4
Fixed · RHSA-2023:4962
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
kernel-rt-0:4.18.0-305.103.1.rt7.178.el8_4
Fixed · RHSA-2023:4961
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
kernel-0:4.18.0-305.103.1.el8_4
Fixed · RHSA-2023:4962
Red Hat Enterprise Linux 8.6 Extended Update Support
kernel-0:4.18.0-372.70.1.el8_6
Fixed · RHSA-2023:4789
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.18.1.el9_2
Fixed · RHSA-2023:3723
Red Hat Enterprise Linux 9
kernel-0:5.14.0-284.18.1.el9_2
Fixed · RHSA-2023:3723
Red Hat Enterprise Linux 9
kernel-rt-0:5.14.0-284.18.1.rt14.303.el9_2
Fixed · RHSA-2023:3708
Red Hat Enterprise Linux 9.0 Extended Update Support
kernel-0:5.14.0-70.64.1.el9_0
Fixed · RHSA-2023:4137
Red Hat Enterprise Linux 9.0 Extended Update Support
kernel-rt-0:5.14.0-70.64.1.rt21.135.el9_0
Fixed · RHSA-2023:4138
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
kernel-0:4.18.0-372.70.1.el8_6
Fixed · RHSA-2023:4789
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel-rt
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-477.21.1.el8_8 | Fixed | RHSA-2023:4517 |
| Red Hat Enterprise Linux 8 | kernel-rt-0:4.18.0-477.21.1.rt7.284.el8_8 | Fixed | RHSA-2023:4541 |
| Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | kernel-0:4.18.0-147.87.1.el8_1 | Fixed | RHSA-2023:4515 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | kernel-0:4.18.0-193.113.1.el8_2 | Fixed | RHSA-2023:4815 |
| Red Hat Enterprise Linux 8.2 Telecommunications Update Service | kernel-0:4.18.0-193.113.1.el8_2 | Fixed | RHSA-2023:4815 |
| Red Hat Enterprise Linux 8.2 Telecommunications Update Service | kernel-rt-0:4.18.0-193.113.1.rt13.164.el8_2 | Fixed | RHSA-2023:4817 |
| Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | kernel-0:4.18.0-193.113.1.el8_2 | Fixed | RHSA-2023:4815 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | kernel-0:4.18.0-305.103.1.el8_4 | Fixed | RHSA-2023:4962 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | kernel-0:4.18.0-305.103.1.el8_4 | Fixed | RHSA-2023:4962 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | kernel-rt-0:4.18.0-305.103.1.rt7.178.el8_4 | Fixed | RHSA-2023:4961 |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | kernel-0:4.18.0-305.103.1.el8_4 | Fixed | RHSA-2023:4962 |
| Red Hat Enterprise Linux 8.6 Extended Update Support | kernel-0:4.18.0-372.70.1.el8_6 | Fixed | RHSA-2023:4789 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.18.1.el9_2 | Fixed | RHSA-2023:3723 |
| Red Hat Enterprise Linux 9 | kernel-0:5.14.0-284.18.1.el9_2 | Fixed | RHSA-2023:3723 |
| Red Hat Enterprise Linux 9 | kernel-rt-0:5.14.0-284.18.1.rt14.303.el9_2 | Fixed | RHSA-2023:3708 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | kernel-0:5.14.0-70.64.1.el9_0 | Fixed | RHSA-2023:4137 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | kernel-rt-0:5.14.0-70.64.1.rt21.135.el9_0 | Fixed | RHSA-2023:4138 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | kernel-0:4.18.0-372.70.1.el8_6 | Fixed | RHSA-2023:4789 |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This vulnerability is rated as having a Moderate impact. While theoretically it could lead to privilege escalation, the only known impact is a denial of service.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.49% (0.00487) | 39.63th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.50% (0.00495) | 38.32th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00018) | 2.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| May 16, 2023 | 0.04% (0.00042) | 5.70th | v3 (v2023.03.01) |
References (11)
- https://access.redhat.com/security/cve/CVE-2023-2124 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2187439 Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/xfs/xfs_buf_item_recover.c?h=v6.4-rc1&id=22ed903eee23a5b174e240f1cdfa9acf393a5210 Mailing ListPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html mailing-listMailing ListThird Party Advisory
- https://lore.kernel.org/linux-xfs/20230412214034.GL3223426@dread.disaster.area/T/#m1ebbcd1ad061d2d33bef6f0534a2b014744d152d
- https://nvd.nist.gov/vuln/detail/CVE-2023-2124
- https://security.netapp.com/advisory/ntap-20230622-0010/ Third Party Advisory
- https://syzkaller.appspot.com/bug?extid=7e9494b8b399902e994e ExploitMailing ListThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2023-2124
- https://www.debian.org/security/2023/dsa-5448 vendor-advisoryThird Party Advisory
- https://www.debian.org/security/2023/dsa-5480 vendor-advisoryThird Party Advisory
Change history (0)
No recorded changes yet.