Home/CVE/The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which
CVE

CVE-2021-37136

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack.

HIGH · CVSS 7.5 EPSS 0.01187
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Affected Packages

3
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven io.netty:netty HIGH
Maven io.netty:netty-codec HIGH fixed in 4.1.68.Final
Maven org.jboss.netty:netty HIGH

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · reefs@jfrog.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Oct 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Advisories

30
suse-csafopenSUSE-SU-2024:14442-1
rhsaRHSA-2022:8506Important
rhsaRHSA-2025:9583Important
rhsaRHSA-2025:9582Moderate
rhsaRHSA-2023:5165Important
🔗

References & Sources

13
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