VDB
DEBIAN-CVE-2021-3520
DEBIAN-CVE-2021-3520
PUBLISHED
CVSS 9.800000190734863 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, 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.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | lz4 | 0, 0, 0 |
| Debian:12 | lz4 | 0, 0, 0 |
| Debian:11 | lz4 | 0, 0, 0 |
| Debian:13 | lz4 | 0, 0, 0 |
Timeline
- Jun 2, 2021 CVE Published
- Apr 28, 2026 CVE Updated