The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags ch
Noroxi assessment
Priority: Monitor (action score 28/100)
- Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.98% (FIRST EPSS); higher than 62.1% of all records.
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: linux (Debian:12) 4.19.37-1; linux (Debian:8) 3.16.68-1; linux-4.9 (Debian:8) 4.9.168-1+deb9u3~deb8u1.
- Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to linux (Debian:12) 4.19.37-1; linux (Debian:8) 3.16.68-1; linux-4.9 (Debian:8) 4.9.168-1+deb9u3~deb8u1 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 · FIRST EPSS
The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.
- BDU:2019-02778
- DLA-1799-1
- DLA-1824-1
- DSA-4465-1
- openSUSE-SU-2019:1716-1
- openSUSE-SU-2019:1757-1
- RHSA-2019:2029
- RHSA-2019:2043
- RHSA-2019:3309
- RHSA-2019:3517
- RHSA-2020:0100
- RHSA-2020:0103
- RHSA-2020:0179
- RHSA-2020:0543
- SUSE-SU-2019:1823-1
- SUSE-SU-2019:1823-2
- SUSE-SU-2019:1829-1
- SUSE-SU-2019:1851-1
- SUSE-SU-2019:1852-1
- SUSE-SU-2019:1854-1
- Published
- Apr 29, 2019
- Updated
- Jun 16, 2026
- EPSS
- 0.9% · 62th percentile
- CWE
- CWE-667
Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.9%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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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.
We use this product, ask for helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel2.16.12 and later · before 3.16.66
- linux linux kernel3.17 and later · before 4.4.183
- linux linux kernel4.5 and later · before 4.9.188
- linux linux kernel4.10 and later · before 4.14.114
- linux linux kernel4.15 and later · before 4.19.37
- linux linux kernel4.20 and later · before 5.0.10
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 4.19.37-1 | 4.19.37-1 |
| Debian:8 | linux | before 3.16.68-1 | 3.16.68-1 |
| Debian:8 | linux-4.9 | before 4.9.168-1+deb9u3~deb8u1 | 4.9.168-1+deb9u3~deb8u1 |
| Debian:9 | linux | before 4.9.168-1+deb9u3 | 4.9.168-1+deb9u3 |
| openSUSE:Leap 15.0 | kernel-debug | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-default | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-docs | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-kvmsmall | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-obs-build | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-obs-qa | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-source | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-syms | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.0 | kernel-vanilla | before 4.12.14-lp150.12.67.1 | 4.12.14-lp150.12.67.1 |
| openSUSE:Leap 15.1 | kernel-debug | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-default | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-docs | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-kvmsmall | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-obs-build | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-obs-qa | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-source | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-syms | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| openSUSE:Leap 15.1 | kernel-vanilla | before 4.12.14-lp151.28.10.1 | 4.12.14-lp151.28.10.1 |
| Red Hat:enterprise_linux:7::client | bpftool | before 0:3.10.0-1062.el7 | 0:3.10.0-1062.el7 |
| Red Hat:enterprise_linux:7::client | bpftool-debuginfo | before 0:3.10.0-1062.el7 | 0:3.10.0-1062.el7 |
+96
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
Published before and after this one in the same product
- ← EarlierCVE-2019-3882Apr 24, 2019 · A flaw was found in the Linux kernel's vfio interface implementation that permits violation of the user's locked memory limit.22Monitor
- ← EarlierCVE-2019-3900Apr 25, 2019 · An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packet31Monitor
- Later →CVE-2018-20509Apr 30, 2019 · The print_binder_ref_olocked function in drivers/android/binder.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:linux | 4.19.37-1 · Debian:12 | Package registry (OSV) |
| debian:linux-4.9 | 4.9.168-1+deb9u3~deb8u1 · Debian:8 | Package registry (OSV) |
| opensuse:kernel-debug | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-default | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-docs | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-kvmsmall | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-obs-build | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-obs-qa | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-source | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-syms | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:kernel-vanilla | 4.12.14-lp150.12.67.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:bpftool | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:bpftool-debuginfo | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-abi-whitelists | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common-x86_64 | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-devel | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-doc | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-tools | 0:3.10.0-1062.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:kernel-azure | 4.12.14-5.33.1 · SUSE:Linux Enterprise Module for Public Cloud 15 | Package registry (OSV) |
| suse:kernel-default | 4.4.121-92.117.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:kernel-docs | 4.12.14-95.24.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:kernel-obs-build | 4.12.14-95.24.1 · SUSE:Linux Enterprise Software Development Kit 12 SP4 | Package registry (OSV) |
| suse:kernel-source | 4.4.121-92.117.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:kernel-source-azure | 4.12.14-5.33.1 · SUSE:Linux Enterprise Module for Public Cloud 15 | Package registry (OSV) |
| suse:kernel-syms | 4.4.121-92.117.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
+5
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
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.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | dos | 2019-04-30 |
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.
- Published
- First PoCsame day
- TodayOct 24, 2026+2735 d
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 researchersFinders, 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.
- TR-21-0331 · Apr 21, 2021(Oracle Güvenlik Uyarısı Yayınladı)
- TR-21-0208 · Mar 8, 2021(IBM Güvenlik Bülteni Yayınladı)
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.
- Special conditions such as timing or configuration are required.
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
- High
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-667 · Improper LockingCVSS vector
CVSS:3.1/AV:L/AC:H/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.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
- packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- www.openwall.com/lists/oss-security/2019/04/29/1
- www.openwall.com/lists/oss-security/2019/04/29/2
- www.openwall.com/lists/oss-security/2019/04/30/1
- www.securityfocus.com/bid/108113
- access.redhat.com/errata/RHSA-2019:2029
- access.redhat.com/errata/RHSA-2019:2043
- access.redhat.com/errata/RHSA-2019:3309
- access.redhat.com/errata/RHSA-2019:3517
- access.redhat.com/errata/RHSA-2020:0100
- access.redhat.com/errata/RHSA-2020:0103
- access.redhat.com/errata/RHSA-2020:0179
- access.redhat.com/errata/RHSA-2020:0543
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.114
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.37
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=04f5866e41fb70690e28397487d8bd8eea7d712a
- github.com/torvalds/linux/commit/04f5866e41fb70690e28397487d8bd8eea7d712a
Vendor advisories and official records. Exploit/PoC links are deliberately left out.