- Reported
-
- Issued
-
- Package
-
lz4-sys
(crates.io)
- Type
-
Vulnerability
- Categories
-
- Keywords
-
#integer-overflow
#out-of-bounds
- Details
-
https://github.com/lz4/lz4/pull/972
- Related
-
- CVSS Score
- 9.8
CRITICAL
- CVSS Details
-
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Patched
-
Description
lz4-sys up to v1.9.3 bundles a version of liblz4 that is vulnerable to
CVE-2021-3520.
Attackers could craft a payload that triggers an integer overflow upon
decompression, causing an out-of-bounds write.
The flaw has been corrected in version v1.9.4 of liblz4, which is included
in lz4-sys 1.9.4.