CVE-2025-8277
Libssh: memory exhaustion via repeated key exchange in libssh
Vexday Risk Score
8Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 3.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
09 set 2025Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Produtos afetados
libsshRed Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat In-Vehicle Operating System 1Red Hat · Red Hat OpenShift Container Platform 4Quer saber se a sua infraestrutura está exposta a isto?
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