Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lz4 Project | Lz4 | >= 1.8.3, < 1.9.4 |
| Netapp | Active Iq Unified Manager | - |
| Netapp | Cloud Backup | - |
| Netapp | Ontap Select Deploy Administration Utility | - |
| Oracle | Communications Cloud Native Core Policy | 1.14.0 |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1954559Issue TrackingPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0005/Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1954559Issue TrackingPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0005/Third Party Advisory
- https://www.oracle.com//security-alerts/cpujul2021.htmlPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatchThird Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlPatchThird Party Advisory
FAQ
What is CVE-2021-3520?
CVE-2021-3520 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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,...
How severe is CVE-2021-3520?
CVE-2021-3520 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-3520?
Check the references section above for vendor advisories and patch information. Affected products include: Lz4 Project Lz4, Netapp Active Iq Unified Manager, Netapp Cloud Backup, Netapp Ontap Select Deploy Administration Utility, Oracle Communications Cloud Native Core Policy.