CVE-2021-3520
lz4: memory corruption due to an integer overflow bug caused by memmove argument
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.
Se presenta un fallo en lz4. Un atacante que envíe un archivo diseñado hacia una aplicación enlazada con lz4 puede ser capaz de desencadenar un desbordamiento de enteros, conllevando una llamada de la función memmove() con un argumento de tamaño negativo, causando una escritura fuera de límites y/o un bloqueo. El mayor impacto de este fallo es en la disponibilidad, con algún impacto potencial en la confidencialidad e integridad también
Red Hat Advanced Cluster Management for Kubernetes 2.3.0 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include code execution, cross site scripting, denial of service, integer overflow, and null pointer vulnerabilities.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-04-28 CVE Reserved
- 2021-05-27 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
- CWE-787: Out-of-bounds Write
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20211104-0005 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1954559 | 2024-05-30 | |
| https://www.oracle.com//security-alerts/cpujul2021.html | 2024-06-06 | |
| https://www.oracle.com/security-alerts/cpuapr2022.html | 2024-06-06 | |
| https://www.oracle.com/security-alerts/cpuoct2021.html | 2024-06-06 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3520 | 2024-05-30 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Lz4 Project Search vendor "Lz4 Project" | Lz4 Search vendor "Lz4 Project" for product "Lz4" | >= 1.8.3 < 1.9.4 Search vendor "Lz4 Project" for product "Lz4" and version " >= 1.8.3 < 1.9.4" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | - | vmware_vsphere |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Cloud Backup Search vendor "Netapp" for product "Cloud Backup" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Ontap Select Deploy Administration Utility Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility" | - | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy" | 1.14.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "1.14.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Zfs Storage Appliance Kit Search vendor "Oracle" for product "Zfs Storage Appliance Kit" | 8.8 Search vendor "Oracle" for product "Zfs Storage Appliance Kit" and version "8.8" | - |
Affected
| ||||||
| Splunk Search vendor "Splunk" | Universal Forwarder Search vendor "Splunk" for product "Universal Forwarder" | >= 8.2.0 < 8.2.12 Search vendor "Splunk" for product "Universal Forwarder" and version " >= 8.2.0 < 8.2.12" | - |
Affected
| ||||||
| Splunk Search vendor "Splunk" | Universal Forwarder Search vendor "Splunk" for product "Universal Forwarder" | >= 9.0.0 < 9.0.6 Search vendor "Splunk" for product "Universal Forwarder" and version " >= 9.0.0 < 9.0.6" | - |
Affected
| ||||||
| Splunk Search vendor "Splunk" | Universal Forwarder Search vendor "Splunk" for product "Universal Forwarder" | 9.1.0 Search vendor "Splunk" for product "Universal Forwarder" and version "9.1.0" | - |
Affected
| ||||||