HIGH
kernel: nfs: use-after-free in svc_process_common()
Published Dec 18, 2018
8.0
HIGHCVSS 3.1
EPSS 1.46%
Description
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Affected products
- Vendor n/a Product Kernel: Defaultn/a
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
OR
- ≥ 3.7 · < 3.16.65
- ≥ 3.17 · < 3.18.133
- ≥ 3.19 · < 4.4.171
- ≥ 4.5 · < 4.9.151
- ≥ 4.10 · < 4.14.94
- ≥ 4.15 · < 4.19.16
- ≥ 4.20 · < 4.20.3
Configuration 2
OR
- 7.0
- 2.0
Configuration 3
- 8.0
Configuration 4
OR
- 14.04
- 16.04
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-957.27.2.el7
Fixed · RHSA-2019:1873
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-115.26.1.el7a
Fixed · RHSA-2020:2854
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-957.27.2.rt56.940.el7
Fixed · RHSA-2019:1891
Red Hat Enterprise Linux 7.4 Extended Update Support
kernel-0:3.10.0-693.58.1.el7
Fixed · RHSA-2019:2696
Red Hat Enterprise Linux 8
kernel-0:4.18.0-147.el8
Fixed · RHSA-2019:3517
Red Hat Enterprise Linux 8
kernel-rt-0:4.18.0-147.rt24.93.el8
Fixed · RHSA-2019:3309
Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions
kernel-0:4.18.0-80.15.1.el8_0
Fixed · RHSA-2020:0204
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.58.1.rt56.652.el6rt
Fixed · RHSA-2019:2730
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-957.27.2.el7 | Fixed | RHSA-2019:1873 |
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-115.26.1.el7a | Fixed | RHSA-2020:2854 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-957.27.2.rt56.940.el7 | Fixed | RHSA-2019:1891 |
| Red Hat Enterprise Linux 7.4 Extended Update Support | kernel-0:3.10.0-693.58.1.el7 | Fixed | RHSA-2019:2696 |
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-147.el8 | Fixed | RHSA-2019:3517 |
| Red Hat Enterprise Linux 8 | kernel-rt-0:4.18.0-147.rt24.93.el8 | Fixed | RHSA-2019:3309 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | kernel-0:4.18.0-80.15.1.el8_0 | Fixed | RHSA-2020:0204 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.58.1.rt56.652.el6rt | Fixed | RHSA-2019:2730 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
8.0 HIGH NVD
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.5 MEDIUM Red Hat
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Attack Vector Adjacent
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact Low
Availability Impact High
6.7 MEDIUM NVD
AV:A/AC:L/Au:S/C:P/I:P/A:C
Access Vector Adjacent
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.46% 0.01455
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.01455
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.46% (0.01455) | 72.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.46% (0.01455) | 69.96th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00084) | 22.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 30.08th | v3 (v2023.03.01) |
| Jul 17, 2024 | 0.06% (0.00064) | 28.52th | v3 (v2023.03.01) |
| Dec 12, 2023 | 0.06% (0.00064) | 26.48th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00046) | 14.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 24, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Feb 14, 2023 | 5.84% (0.05839) | 90.14th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.84% (0.03836) | 72.40th | v1 |
| Jan 6, 2022 | 3.84% (0.03836) | 72.15th | v1 |
| Sep 1, 2021 | 3.84% (0.03836) | 82.95th | v1 |
| Jun 15, 2021 | 3.84% (0.03836) | 0.00th | v1 |
| Apr 14, 2021 | 3.67% (0.03674) | 0.00th | v1 |
Weaknesses (1)
References (26)
- http://www.securityfocus.com/bid/106253 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:1873 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1891 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2696 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2730 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3309 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3517 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2020:0204 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-16884 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1660375 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-16884
- https://patchwork.kernel.org/cover/10733767/ x_refsource_CONFIRMPatchVendor Advisory
- https://patchwork.kernel.org/patch/10733769/ x_refsource_CONFIRMPatchVendor Advisory
- https://support.f5.com/csp/article/K21430012 x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/3932-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3932-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3980-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3980-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3981-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3981-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-16884
- https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106253 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2019:1873 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:1891 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:2696 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:2730 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:3309 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:3517 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2020:0204 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-16884 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1660375 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16884 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-16884 | ||
| https://patchwork.kernel.org/cover/10733767/ | x_refsource_CONFIRMPatchVendor Advisory | |
| https://patchwork.kernel.org/patch/10733769/ | x_refsource_CONFIRMPatchVendor Advisory | |
| https://support.f5.com/csp/article/K21430012 | x_refsource_CONFIRMThird Party Advisory | |
| https://usn.ubuntu.com/3932-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3932-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3980-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3980-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3981-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3981-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-16884 | ||
| https://www.oracle.com/security-alerts/cpuApr2021.html | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 18, 2018
Updated Aug 5, 2024
Reserved Sep 11, 2018
Link CVE-2018-16884
CISA Vulnrichment
Updated n/a