CVE-2021-3520
9.8 CRITICALThere's a flaw in lz4
Published: 2021-06-02 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 9.8 CRITICAL
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-190, CWE-787
Affected products
| Vendor | Product |
|---|---|
| lz4_project | active_iq_unified_manager, cloud_backup, communications_cloud_native_core_policy |
| netapp | active_iq_unified_manager, cloud_backup, communications_cloud_native_core_policy |
| oracle | active_iq_unified_manager, cloud_backup, communications_cloud_native_core_policy |
| splunk | active_iq_unified_manager, cloud_backup, communications_cloud_native_core_policy |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-3520
- [Patch]https://bugzilla.redhat.com/show_bug.cgi?id=1954559
- [Other]https://security.netapp.com/advisory/ntap-20211104-0005/
- [Patch]https://www.oracle.com//security-alerts/cpujul2021.html
- [Patch]https://www.oracle.com/security-alerts/cpuapr2022.html
- [Patch]https://www.oracle.com/security-alerts/cpuoct2021.html
- [Patch]https://bugzilla.redhat.com/show_bug.cgi?id=1954559
- [Other]https://security.netapp.com/advisory/ntap-20211104-0005/
- [Patch]https://www.oracle.com//security-alerts/cpujul2021.html
- [Patch]https://www.oracle.com/security-alerts/cpuapr2022.html
- [Patch]https://www.oracle.com/security-alerts/cpuoct2021.html
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