kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c
Published Sep 4, 2019
7.8
HIGHCVSS 3.1
EPSS 0.36%
Description
An issue was discovered in the Linux kernel before 4.14.11. A double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c.
Affected products
No data.
Configuration 1
- ≥ 3.10 · < 3.16.55
- ≥ 3.17 · < 3.18.91
- ≥ 3.19 · < 4.1.50
- ≥ 4.2 · < 4.4.109
- ≥ 4.5 · < 4.9.74
- ≥ 4.10 · < 4.14.11
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-1127.8.2.el7
Fixed · RHSA-2020:2082
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-115.21.2.el7a
Fixed · RHSA-2020:2104
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-1127.8.2.rt56.1103.el7
Fixed · RHSA-2020:2085
Red Hat Enterprise Linux 7.2 Advanced Update Support
kernel-0:3.10.0-327.88.1.el7
Fixed · RHSA-2020:2285
Red Hat Enterprise Linux 7.3 Advanced Update Support
kernel-0:3.10.0-514.76.1.el7
Fixed · RHSA-2020:2277
Red Hat Enterprise Linux 7.3 Telco Extended Update Support
kernel-0:3.10.0-514.76.1.el7
Fixed · RHSA-2020:2277
Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions
kernel-0:3.10.0-514.76.1.el7
Fixed · RHSA-2020:2277
Red Hat Enterprise Linux 7.4 Advanced Update Support
kernel-0:3.10.0-693.67.1.el7
Fixed · RHSA-2020:2214
Red Hat Enterprise Linux 7.4 Telco Extended Update Support
kernel-0:3.10.0-693.67.1.el7
Fixed · RHSA-2020:2214
Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions
kernel-0:3.10.0-693.67.1.el7
Fixed · RHSA-2020:2214
Red Hat Enterprise Linux 7.6 Extended Update Support
kernel-0:3.10.0-957.54.1.el7
Fixed · RHSA-2020:2289
Red Hat Enterprise Linux 7.7 Extended Update Support
kernel-0:3.10.0-1062.26.1.el7
Fixed · RHSA-2020:2522
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.67.1.rt56.665.el6rt
Fixed · RHSA-2020:2242
Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS
kernel-0:3.10.0-957.54.1.el7
Fixed · RHSA-2020:2289
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-1127.8.2.el7 | Fixed | RHSA-2020:2082 |
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-115.21.2.el7a | Fixed | RHSA-2020:2104 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-1127.8.2.rt56.1103.el7 | Fixed | RHSA-2020:2085 |
| Red Hat Enterprise Linux 7.2 Advanced Update Support | kernel-0:3.10.0-327.88.1.el7 | Fixed | RHSA-2020:2285 |
| Red Hat Enterprise Linux 7.3 Advanced Update Support | kernel-0:3.10.0-514.76.1.el7 | Fixed | RHSA-2020:2277 |
| Red Hat Enterprise Linux 7.3 Telco Extended Update Support | kernel-0:3.10.0-514.76.1.el7 | Fixed | RHSA-2020:2277 |
| Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions | kernel-0:3.10.0-514.76.1.el7 | Fixed | RHSA-2020:2277 |
| Red Hat Enterprise Linux 7.4 Advanced Update Support | kernel-0:3.10.0-693.67.1.el7 | Fixed | RHSA-2020:2214 |
| Red Hat Enterprise Linux 7.4 Telco Extended Update Support | kernel-0:3.10.0-693.67.1.el7 | Fixed | RHSA-2020:2214 |
| Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions | kernel-0:3.10.0-693.67.1.el7 | Fixed | RHSA-2020:2214 |
| Red Hat Enterprise Linux 7.6 Extended Update Support | kernel-0:3.10.0-957.54.1.el7 | Fixed | RHSA-2020:2289 |
| Red Hat Enterprise Linux 7.7 Extended Update Support | kernel-0:3.10.0-1062.26.1.el7 | Fixed | RHSA-2020:2522 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.67.1.rt56.665.el6rt | Fixed | RHSA-2020:2242 |
| Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUS | kernel-0:3.10.0-957.54.1.el7 | Fixed | RHSA-2020:2289 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.
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
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.36% (0.00363) | 27.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00350) | 26.60th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00036) | 6.98th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.04% (0.00042) | 5.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (8)
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-18595 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1758671 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 x_refsource_MISCMailing List
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4397f04575c44e1440ec2e49b6302785c95fd2f8 x_refsource_MISCMailing ListPatch
- https://nvd.nist.gov/vuln/detail/CVE-2017-18595
- https://www.cve.org/CVERecord?id=CVE-2017-18595
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2017-18595 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1758671 | Issue Tracking | |
| https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 | x_refsource_MISCMailing List | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4397f04575c44e1440ec2e49b6302785c95fd2f8 | x_refsource_MISCMailing ListPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18595 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-18595 |
Change history (0)
No recorded changes yet.