CVE-2021-38202
Summary
| CVE | CVE-2021-38202 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-08-08 20:15:07 UTC |
| Updated | 2026-05-12 10:16:36 UTC |
| Description | fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.014520000 probability, percentile 0.809420000 (date 2026-05-12)
Problem Types: CWE-125 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Application | Netapp | Element Software | - | All | All | All |
| Operating System | Netapp | Hci Bootstrap Os | - | All | All | All |
| Hardware | Netapp | Hci Compute Node | - | All | All | All |
| Application | Netapp | Hci Management Node | - | All | All | All |
| Hardware | Netapp | Hci Storage Node | - | All | All | All |
| Application | Netapp | Solidfire | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | N/a | affected n/a | Not specified |
| ADP | Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem | affected * custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| August 2021 Linux Kernel 5.13.4 Vulnerabilities in NetApp Products | NetApp Product Security | af854a3a-2127-422b-91ae-364da2661108 | security.netapp.com | Third Party Advisory |
| cert-portal.siemens.com/productcert/html/ssa-265688.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| NFSD: Prevent a possible oops in the nfs_dirent() tracepoint · torvalds/linux@7b08cf6 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Third Party Advisory |
| cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 | af854a3a-2127-422b-91ae-364da2661108 | cdn.kernel.org | Mailing List, Patch, Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 198524 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-5096-1)
- 900294 CBL-Mariner Linux Security Update for kernel 5.10.52.1
- 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
- 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
- 900994 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6586-1)
- 903199 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5077)
- 905941 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5077-1)