kernel: backporting error in ptrace_get_debugreg()
Published Sep 4, 2019
5.6
MEDIUMCVSS 3.1
EPSS 0.61%
Description
A backporting error was discovered in the Linux stable/longterm kernel 4.4.x through 4.4.190, 4.9.x through 4.9.190, 4.14.x through 4.14.141, 4.19.x through 4.19.69, and 5.2.x through 5.2.11. Misuse of the upstream "x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()" commit reintroduced the Spectre vulnerability that it aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped.
Affected products
No data.
Configuration 1
- ≥ 4.4 · ≤ 4.4.190
- ≥ 4.9 · ≤ 4.9.190
- ≥ 4.14 · ≤ 4.14.141
- ≥ 4.19 · ≤ 4.19.69
- ≥ 5.2 · ≤ 5.2.11
Configuration 2
- n/a
- n/a
- 8.0
- 9.0
- 10.0
- 15.0
- 15.1
Configuration 3
Running on/with
- n/a
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
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 MRG 2
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | 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 |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:L/AC:M/Au:N/C:C/I:N/A:N
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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.61% (0.00609) | 47.21th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.59% (0.00586) | 43.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00088) | 22.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00049) | 20.08th | v3 (v2023.03.01) |
| May 17, 2024 | 0.05% (0.00049) | 17.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00049) | 15.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.84% (0.05839) | 77.39th | v2 (v2022.01.01) |
| Feb 3, 2022 | 11.74% (0.11741) | 88.45th | v1 |
| Jan 6, 2022 | 11.74% (0.11741) | 88.31th | v1 |
| Sep 1, 2021 | 2.88% (0.02880) | 80.71th | v1 |
| Apr 14, 2021 | 2.88% (0.02880) | 0.00th | v1 |
References (17)
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-15902 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1752081 Issue Tracking
- https://grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.php x_refsource_MISCExploitPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-15902
- https://seclists.org/bugtraq/2019/Sep/41 mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20191004-0001/ x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/4157-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4157-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4162-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4162-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4163-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4163-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2019-15902
- https://www.debian.org/security/2019/dsa-4531 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.