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.
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History
Tue, 09 Sep 2025 12:00:00 +0000
Type | Values Removed | Values Added |
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Description | 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. | |
Title | Libssh: memory exhaustion via repeated key exchange in libssh | |
First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift |
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Weaknesses | CWE-401 | |
CPEs | cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift |
|
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-09-09T11:55:39.036Z
Reserved: 2025-07-28T11:02:27.938Z
Link: CVE-2025-8277

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Status : Awaiting Analysis
Published: 2025-09-09T12:15:30.677
Modified: 2025-09-09T16:28:43.660
Link: CVE-2025-8277

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