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NVD / CVE Program· CNA mitre

CVE-2019-13272: In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to cre

Noroxi assessment

Priority: This week (action score 77/100)

  • CISA has confirmed exploitation in the wild (Dec 10, 2021). Remediation deadline for US federal agencies: Jun 10, 2022.
  • A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 52.1% (FIRST EPSS); higher than 98.9% of all records.
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: linux (Debian:10) 4.19.37-5+deb10u1; linux (Debian:12) 4.19.37-6; linux (Debian:8) 3.16.70-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Don’t wait for the next maintenance window. Upgrade to linux (Debian:10) 4.19.37-5+deb10u1; linux (Debian:12) 4.19.37-6; linux (Debian:8) 3.16.70-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.

HighCVSS 7.8 · v3.1KEVWeaponized Fix available
Published
Jul 17, 2019
Updated
Jun 16, 2026
EPSS
52.1% · 98th percentile
CWE
—

Report tools

JSON

Action score

77

This week

Don’t wait for the next maintenance window.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
30 / 30 · Listed
EPSS
16 / 30 · 52.1%

CISA SSVC decision

Exploitation
active
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Dec 10, 2021. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Jun 10, 2022.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • A fix has been released

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux
fedoraprojectfedora
canonicalubuntu linux
redhatenterprise linux
redhatenterprise linux for arm 64
redhatenterprise linux for ibm z systems
redhatenterprise linux for real time
redhatenterprise linux for real time for nfv
redhatenterprise linux for real time for nfv tus
redhatenterprise linux for real time tus
netappaff a700s firmware

and 13 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux19.04
  • debian debian linux10.0
  • debian debian linux8.0
  • debian debian linux9.0
  • fedoraproject fedora29
  • linux linux kernel4.20 and later · before 5.1.17
  • linux linux kernel3.16.52 and later · before 3.16.71
  • linux linux kernel4.1.39 and later · before 4.2
  • linux linux kernel4.4.40 and later · before 4.4.185
  • linux linux kernel4.8.16 and later · before 4.9
  • linux linux kernel4.9.1 and later · before 4.9.185
  • linux linux kernel4.10 and later · before 4.14.133
  • linux linux kernel4.15 and later · before 4.19.58
  • netapp active iq unified managerall versions
  • netapp aff a700s firmwareall versions
  • netapp e-series performance analyzerall versions
  • netapp e-series santricity os controller11.0.0 and later · up to 11.60.3 inclusive
  • netapp h410c firmwareall versions

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10linuxbefore 4.19.37-5+deb10u14.19.37-5+deb10u1
Debian:12linuxbefore 4.19.37-64.19.37-6
Debian:8linuxbefore 3.16.70-13.16.70-1
Debian:8linux-4.9before 4.9.168-1+deb9u4~deb8u14.9.168-1+deb9u4~deb8u1
Debian:9linuxbefore 4.9.168-1+deb9u44.9.168-1+deb9u4
Red Hat:enterprise_linux:7::serverkernelbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-abi-whitelistsbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-altbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-bootwrapperbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-debugbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-debug-debuginfobefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-debug-develbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-debuginfobefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-debuginfo-common-ppc64lebefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-develbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-docbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-headersbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-toolsbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-tools-debuginfobefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-tools-libsbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverkernel-tools-libs-develbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverperfbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverperf-debuginfobefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a
Red Hat:enterprise_linux:7::serverpython-perfbefore 0:4.14.0-115.12.1.el7a0:4.14.0-115.12.1.el7a

+86

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
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    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2019-12578Jul 11, 2019 · A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v82 for Linux could allow an authenticated, local attacke
    31Monitor
  • ← EarlierCVE-2019-12579Jul 11, 2019 · A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v82 for Linux and macOS could allow an authenticated, loc
    31Monitor
  • Later →CVE-2019-13631Jul 17, 2019 · In parse_hid_report_descriptor in drivers/input/tablet/gtco.c in the Linux kernel through 5.2.1, a malicious USB device can send an HID repo
    27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:linux4.19.37-6 · Debian:12Package registry (OSV)
debian:linux-4.94.9.168-1+deb9u4~deb8u1 · Debian:8Package registry (OSV)
red hat:kernel-rt0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-core0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-core0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-debuginfo0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-devel0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm-debuginfo0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-extra0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo0:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo-common-x86_640:4.18.0-80.7.2.rt9.154.el8_0 · Red Hat:enterprise_linux:8::nfvPackage registry (OSV)
suse:kernel-default4.4.180-94.107.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:kernel-livepatch-SLE15-SP1_Update_26-2.1 · SUSE:Linux Enterprise Live Patching 15 SP1Package registry (OSV)
suse:kernel-source4.4.180-94.107.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:kernel-syms4.4.180-94.107.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:kgraft-patch-SLE12-SP2_Update_331-3.5.1 · SUSE:OpenStack Cloud 7Package registry (OSV)
suse:kgraft-patch-SLE12-SP3_Update_266-2.1 · SUSE:Linux Enterprise Server for SAP Applications 12 SP3Package registry (OSV)
suse:kgraft-patch-SLE12-SP3_Update_274-2.1 · SUSE:Linux Enterprise Server for SAP Applications 12 SP3Package registry (OSV)
suse:kgraft-patch-SLE12-SP3_Update_291-4.3.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:kgraft-patch-SLE12-SP4_Update_27-2.5 · SUSE:Linux Enterprise Live Patching 12 SP4Package registry (OSV)
suse:kgraft-patch-SLE12-SP4_Update_36-2.5 · SUSE:Linux Enterprise Live Patching 12 SP4Package registry (OSV)
suse:kgraft-patch-SLE12-SP4_Update_46-2.5 · SUSE:Linux Enterprise Live Patching 12 SP4Package registry (OSV)
suse:kgraft-patch-SLE12-SP4_Update_55-2.1 · SUSE:Linux Enterprise Live Patching 12 SP4Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×4
  • Proof-of-concept repository on GitHub ×19

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2019-07-17
Exploit-DB entrylocal2019-07-24
Exploit-DB entrylocal2021-11-23
Exploit-DB entrylocal2019-10-24
Metasploit moduleexploit/linux/local/ptrace_traceme_pkexec_helperLinux Polkit pkexec helper PTRACE_TRACEME local root exploitexploit2019-07-04
Proof-of-concept repository on GitHubstars:3342019-07-31
Proof-of-concept repository on GitHubstars:52019-07-31
Proof-of-concept repository on GitHubstars:12019-08-04
Proof-of-concept repository on GitHubstars:42019-08-07
Proof-of-concept repository on GitHubstars:02020-03-05
Proof-of-concept repository on GitHubstars:02020-05-02
Proof-of-concept repository on GitHubstars:12020-05-11

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-13 d
  2. First PoCsame day
  3. Published
  4. CISA KEV+877 d
  5. TodayOct 28, 2026+2660 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records