VDB
CISA-2025-8277
CISA-2025-8277
PUBLISHED
CVSS 3.1 LOW
Reported by redhat · Published September 9, 2025
A flaw was found in libssh's handling of key exchange (KEX) processes when a client repeatedly sends incorrect KEX guesses. The library fails to free memory during these rekey operations, which can gradually exhaust system memory. This issue can lead to crashes on the client side, particularly when using libgcrypt, which impacts application stability and availability.
Risk Scores
CVSS 3.1
3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| 0.6.0 | ||
| Red Hat | Red Hat Enterprise Linux 10 | |
| Red Hat | Red Hat Enterprise Linux 6 | |
| Red Hat | Red Hat Enterprise Linux 7 | |
| Red Hat | Red Hat Enterprise Linux 8 | |
| Red Hat | Red Hat Enterprise Linux 9 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | |
| 0.6.0, 0.6.0 | ||
| Red Hat | Red Hat Enterprise Linux 6 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | |
| Red Hat | Red Hat Enterprise Linux 8 | |
| Red Hat | Red Hat Enterprise Linux 9 | |
| Red Hat | Red Hat Enterprise Linux 10 | |
| Red Hat | Red Hat Enterprise Linux 7 |
Timeline
- Sep 9, 2025 CVE Published
- Nov 21, 2025 CVE Updated
References
- vdb-entryx_refsource_REDHAT
- RHBZ#2383888 issue-trackingx_refsource_REDHAT