A flaw was found in the Linux kernel, where unauthorized access to the execution of the…
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Kernel | Linux kernel 6.2-rc6 | — | No fix listed | CNA |
- Kernel Vendor— Affected Linux kernel 6.2-rc6 Fixed in — No fix listed CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* | 20.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:* | 22.04 | Vulnerable | Canonical |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.11 to before 5.15.91; 5.16 to before 6.1.9 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* | 6.2 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* | 6.2 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* | 6.2 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:* | 6.2 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:* | 6.2 rc5 | Vulnerable | Linux |
- cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:* Versions 22.04 Vulnerable ·Canonical
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.11 to before 5.15.91; 5.16 to before 6.1.9 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* Versions 6.2 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* Versions 6.2 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* Versions 6.2 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:* Versions 6.2 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:* Versions 6.2 rc5 Vulnerable ·Linux
Remediation
Red Hat 12 advisories
- RHSA-2023:1970 Released 2023-04-25 · Red Hat rating Importantkernel security and bug fix update
- Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.53.1.el9_0
- Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.53.1.el9_0, kernel-debug-devel-matched-5.14.0-70.53.1.el9_0, kernel-devel-5.14.0-70.53.1.el9_0 +5
- Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.53.1.el9_0, kernel-5.14.0-70.53.1.el9_0, kernel-abi-stablelists-5.14.0-70.53.1.el9_0 +14
- RHSA-2023:1984 Released 2023-04-25 · Red Hat rating Importantkpatch-patch security update
- Red Hat Enterprise Linux BaseOS EUS (v.9.0) kpatch-patch-5_14_0-70_30_1-1-5.el9_0, kpatch-patch-5_14_0-70_36_1-1-4.el9_0, kpatch-patch-5_14_0-70_43_1-1-3.el9_0 +2
- RHSA-2023:1980 Released 2023-04-25 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt-5.14.0-70.53.1.rt21.124.el9_0, kernel-rt-core-5.14.0-70.53.1.rt21.124.el9_0, kernel-rt-debug-5.14.0-70.53.1.rt21.124.el9_0 +7
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt-5.14.0-70.53.1.rt21.124.el9_0, kernel-rt-core-5.14.0-70.53.1.rt21.124.el9_0, kernel-rt-debug-5.14.0-70.53.1.rt21.124.el9_0 +9
Show 9 more Red Hat advisories
- RHSA-2023:1703 Released 2023-04-11 · Red Hat rating Importantkernel security and bug fix update
- Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-162.23.1.el9_1
- Red Hat Enterprise Linux AppStream (v. 9) kernel-debug-devel-5.14.0-162.23.1.el9_1, kernel-debug-devel-matched-5.14.0-162.23.1.el9_1, kernel-devel-5.14.0-162.23.1.el9_1 +5
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-5.14.0-162.23.1.el9_1, kernel-5.14.0-162.23.1.el9_1, kernel-abi-stablelists-5.14.0-162.23.1.el9_1 +14
- RHSA-2023:1691 Released 2023-04-11 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-162.23.1.rt21.186.el9_1, kernel-rt-core-5.14.0-162.23.1.rt21.186.el9_1, kernel-rt-debug-5.14.0-162.23.1.rt21.186.el9_1 +7
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-162.23.1.rt21.186.el9_1, kernel-rt-core-5.14.0-162.23.1.rt21.186.el9_1, kernel-rt-debug-5.14.0-162.23.1.rt21.186.el9_1 +9
- RHSA-2023:1681 Released 2023-04-10 · Red Hat rating Importantkpatch-patch security update
- Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-162_12_1-1-3.el9_1, kpatch-patch-5_14_0-162_18_1-1-2.el9_1, kpatch-patch-5_14_0-162_22_2-1-1.el9_1 +1
- RHSA-2023:1677 Released 2023-04-10 · Red Hat rating ImportantRed Hat Virtualization Host 4.4.z SP 1 security update batch#5 (oVirt-4.5.3-5)
- Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host-4.5.3-202304051438_8.6, redhat-virtualization-host-image-update-4.5.3-202304051438_8.6
- RHSA-2023:1659 Released 2023-04-05 · Red Hat rating Importantkpatch-patch security update
- Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-425_10_1-1-4.el8_7, kpatch-patch-4_18_0-425_13_1-1-2.el8_7, kpatch-patch-4_18_0-425_3_1-1-6.el8
- RHSA-2023:1660 Released 2023-04-05 · Red Hat rating Importantkpatch-patch security update
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) kpatch-patch-4_18_0-372_26_1-1-6.el8_6, kpatch-patch-4_18_0-372_32_1-1-5.el8_6, kpatch-patch-4_18_0-372_36_1-1-4.el8_6 +3
- RHSA-2023:1566 Released 2023-04-04 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-425.19.2.el8_7
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-425.19.2.el8_7, kernel-4.18.0-425.19.2.el8_7, kernel-abi-stablelists-4.18.0-425.19.2.el8_7 +19
- RHSA-2023:1584 Released 2023-04-04 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-core-4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-debug-4.18.0-425.19.2.rt7.230.el8_7 +9
- Red Hat Enterprise Linux for Real Time (v. 8) kernel-rt-4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-core-4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-debug-4.18.0-425.19.2.rt7.230.el8_7 +7
- RHSA-2023:1554 Released 2023-04-04 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.51.1.el8_6
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.51.1.el8_6, kernel-4.18.0-372.51.1.el8_6, kernel-abi-stablelists-4.18.0-372.51.1.el8_6 +19
- Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.51.1.el8_6, perf-4.18.0-372.51.1.el8_6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2023:1566 |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2023:1703 |
| Red Hat CodeReady Linux Builder EUS (v.8.6) | Fixed | RHSA-2023:1554 |
| Red Hat CodeReady Linux Builder EUS (v.9.0) | Fixed | RHSA-2023:1970 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:1703 |
| Red Hat Enterprise Linux AppStream EUS (v.9.0) | Fixed | RHSA-2023:1970 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2023:1566, RHSA-2023:1659 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:1681, RHSA-2023:1703 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.6) | Fixed | RHSA-2023:1554, RHSA-2023:1660 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.0) | Fixed | RHSA-2023:1970, RHSA-2023:1984 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2023:1691 |
| Red Hat Enterprise Linux Real Time EUS (v.9.0) | Fixed | RHSA-2023:1980 |
| Red Hat Enterprise Linux Real Time for NFV (v. 8) | Fixed | RHSA-2023:1584 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2023:1691 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) | Fixed | RHSA-2023:1980 |
| Red Hat Enterprise Linux for Real Time (v. 8) | Fixed | RHSA-2023:1584 |
| Red Hat Virtualization 4 Hypervisor for RHEL 8 | Fixed | RHSA-2023:1554, RHSA-2023:1677 |
Not affected: 3 products
- RHEL 8-based RHEV-H for RHEV 4 (build requirements)
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2025-06-17 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2023-0386
- 2026-10-03 Alias added: GHSA-p72q-v88c-rprq
References
Advisory 5
- https://security.netapp.com/advisory/ntap-20230420-0004/
- DSA-5402
- [debian-lts-announce] 20230605 [SECURITY] [DLA 3446-1] linux-5.10 security update
- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
- [debian-lts-announce] 20240627 [SECURITY] [DLA 3840-1] linux security update
More Linux Kernel vulnerabilities
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2023-0386 · CVE Program
- CVE-2023-0386 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-p72q-v88c-rprq · GitHub Advisory Database · CC BY 4.0
- CVE-2023-0386 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences