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.
Project Subscriptions
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2657-1 | lz4 security update |
Debian DSA |
DSA-4919-1 | lz4 security update |
Ubuntu USN |
USN-4968-1 | LZ4 vulnerability |
Ubuntu USN |
USN-4968-2 | LZ4 vulnerability |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:01:07.870Z
Reserved: 2021-04-28T00:00:00.000Z
Link: CVE-2021-3520
No data.
Status : Modified
Published: 2021-06-02T13:15:13.170
Modified: 2026-06-17T04:05:17.183
Link: CVE-2021-3520
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
Ubuntu USN