#VU56931 Buffer overflow in Apache Mina SSHD - CVE-2021-30129
Published: September 29, 2021
Vulnerability identifier: #VU56931
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-30129
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Apache Mina SSHD
Apache Mina SSHD
Software vendor:
Apache Foundation
Apache Foundation
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the sshd-core of Apache Mina SSHD. A remote attacker can send specially crafted requests to the server, trigger buffer overflow and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.
External links
- https://lists.apache.org/thread.html/r6d4f78e192a0c8eabd671a018da464024642980ecd24096bde6db36f%40%3Cusers.mina.apache.org%3E
- https://lists.apache.org/thread.html/r6d4f78e192a0c8eabd671a018da464024642980ecd24096bde6db36f@%3Cusers.mina.apache.org%3E
- https://lists.apache.org/thread.html/red01829efa2a8c893c4baff4f23c9312bd938543a9b8658e172b853b@%3Cannounce.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/07/12/1
- https://github.com/advisories/GHSA-9279-7hph-r3xw