Home/CVE/A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error.
CVE

CVE-2021-30129

A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error.

A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error. This issue affects the SFTP and port forwarding features of Apache Mina SSHD version 2.0.0 and later versions. It was addressed in Apache Mina SSHD 2.7.0.

MEDIUM · CVSS 6.5 EPSS 0.00237
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-772Missing Release of Resource after Effective Lifetime
▤

Affected Products & Versions

10
apache sshd>= 2.0.0 and < 2.7.0
oracle banking paymentsall versions
oracle banking trade financeall versions
oracle banking treasury managementall versions
oracle communications cloud native core consoleall versions
oracle flexcube universal banking>= 14.0.0 and <= 14.3.0
oracle flexcube universal bankingall versions
oracle middleware common libraries and toolsall versions
▤

Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.apache.sshd:sshd-core HIGH fixed in 2.7.0
Maven org.apache.sshd:sshd-mina HIGH fixed in 2.7.0
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@apache.org
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 NVD12 Jul 2021 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

7
rhsaRHSA-2023:4983Important
rhsaRHSA-2022:1013Moderate
rhsaRHSA-2021:5134Critical
rhsaRHSA-2021:4679Moderate
rhsaRHSA-2021:4676Moderate
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2021/07/12/1Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/r6d4f78e192a0c8eabd671a018da464024642980ecd24096bde6db36f%40%3Cusers.mina.apache.org%3EMailing ListVendor Advisory
https://lists.apache.org/thread.html/red01829efa2a8c893c4baff4f23c9312bd938543a9b8658e172b853b%40%3Cannounce.apache.org%3E
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatchThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html
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