CVE-2019-15902

Exp

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.

Published: 2019-09-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-15902 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.09%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-15902

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-15902

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.32% 0.09% -0.23%
2 2025-03-29 0.05% 0.32% +0.27%
3 2024-12-17 — 0.05% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-15902

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.6 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.1 4.0 [email protected]
4.7 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:N/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 6.9 [email protected]

Weakness enumeration for CVE-2019-15902

OS Trackers for CVE-2019-15902

vendor priority summary link
debian not yet assigned CVE-2019-15902 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-15902
redhat medium — https://access.redhat.com/security/cve/CVE-2019-15902
suse medium CVE-2019-15902 severity moderate: SUSE including 297 source package names (cluster-md-kmp-default-4.12.14-120.1, cluster-md-kmp-default-4.12.14-150.35.1, …), 586 product×package rows across 71 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 3.0, … (71 product lines)): Fixed 554, Known Not Affected 32. https://www.suse.com/security/cve/CVE-2019-15902/
ubuntu medium CVE-2019-15902 medium priority: Ubuntu including 79 source packages (linux, linux-aws, …), 703 status rows across 11 suites (bionic, disco, eoan, focal, groovy, jammy, noble, oracular, trusty, upstream, xenial): DNE 452, not-affected 125, released 117, ignored 9. https://ubuntu.com/security/CVE-2019-15902

Affected software / configurations for CVE-2019-15902

Vendor Product Version Raw CPE
linux linux_kernel >= 4.4, <= 4.4.190 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.9, <= 4.9.190 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.14, <= 4.14.141 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.19, <= 4.19.69 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.2, <= 5.2.11 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapp active_iq_performance_analytics_services — cpe:2.3:a:netapp:active_iq_performance_analytics_services:-:*:*:*:*:*:*:*
netapp service_processor — cpe:2.3:a:netapp:service_processor:-:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
netapp baseboard_management_controller_firmware — cpe:2.3:o:netapp:baseboard_management_controller_firmware:-:*:*:*:*:*:*:*

References for CVE-2019-15902

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html Third Party Advisory
https://grsecurity.net/teardown_of_a_failed_linux_lts_spectre_fix.php Exploit Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/41 Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20191004-0001/ Third Party Advisory
https://usn.ubuntu.com/4157-1/
https://usn.ubuntu.com/4157-2/
https://usn.ubuntu.com/4162-1/
https://usn.ubuntu.com/4162-2/
https://usn.ubuntu.com/4163-1/
https://usn.ubuntu.com/4163-2/
https://www.debian.org/security/2019/dsa-4531 Third Party Advisory
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