9.8

GHSA-9Q5J-JM53-V7VR: lz4-sys Crates.Io

CVSS: 9.8v3.1CriticalPublished
AliasesRUSTSEC-2022-0051
Published 25-08-2022Last modified 04-02-2026
Open JSON

Vulnerability summary

GHSA-9Q5J-JM53-V7VR is a critical (CVSS 9.8) vulnerability in lz4-sys Crates.Io.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (OSV · Crates.io), selected by version preference
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CVE-2021-3520

Timeline

  1. 25-08-2022
    PublishedVulnerability first disclosed.
  2. 04-02-2026
    Last modifiedVulnerability information updated.

Description

Memory corruption in liblz4 lz4-sys up to v1.9.3 bundles a version of liblz4 that is vulnerable to [CVE-2021-3520](https://nvd.nist.gov/vuln/detail/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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Crates.Io1 product
  • lz4-sys< 1.9.4 | ≥ 0.0.0-0, < 1.9.4

1 vendor · 1 product

References

3 links