The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade Ubuntu:24.10
openssh
to version 1:9.7p1-7ubuntu4.2 or higher.
Note: Versions mentioned in the description apply only to the upstream openssh
package and not the openssh
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:24.10
relevant fixed versions and status.
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.