DEBIAN-CVE-2025-26466
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-26466
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-26466.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-26466
- Upstream
- Published
- 2025-02-28T22:15:40Z
- Modified
- 2025-09-30T03:54:40Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.
- References
Affected packages
Debian:13 / openssh
Package
- Name
- openssh
- Purl
- pkg:deb/debian/openssh?arch=source
Debian:14 / openssh
Package
- Name
- openssh
- Purl
- pkg:deb/debian/openssh?arch=source