GO-2022-0968

vendorUSosv

Panic on malformed packets in golang.org/x/crypto/ssh

view advisory published 2022-09-13Licence: per source

Unauthenticated clients can cause a panic in SSH servers. When using AES-GCM or ChaCha20Poly1305, consuming a malformed packet which contains an empty plaintext causes a panic.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-43565US	high7.5	1.12% (66th)	—	2022-09-06
The x/crypto/ssh package before 0.0.0-20211202192323-5770296d904e of golang.org/x/crypto allows an attacker to panic an SSH server.

references

External citations — patches, advisories, analysis.

https://go.dev/cl/368814/FIX
https://go.dev/issues/49932REPORT
https://groups.google.com/g/golang-announce/c/2AR1sKiM-QsWEB

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