CVE-2021-3520
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.
- Score
- CVSS 3.1 9.8 Critical
- Status
- Modified - secalert@redhat.com
- Published
- 2021-06-02
- Last modified
- 2026-10-14
- Weaknesses
- CWE-190, CWE-787
Affected products
- Lz4 (Lz4 Project)
- Active Iq Unified Manager (Netapp)
- Cloud Backup (Netapp)
- Ontap Select Deploy Administration Utility (Netapp)
- Communications Cloud Native Core Policy (Oracle)
- Zfs Storage Appliance Kit (Oracle)
- Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
- Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
- Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
- Universal Forwarder (Splunk)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1954559
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security.netapp.com/advisory/ntap-20211104-0005/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
