| id: GO-2021-0227 |
| modules: |
| - module: golang.org/x/crypto |
| versions: |
| - fixed: 0.0.0-20201216223049-8b5274cf687f |
| vulnerable_at: 0.0.0-20201208171446-5f87f3452ae9 |
| packages: |
| - package: golang.org/x/crypto/ssh |
| symbols: |
| - connection.serverAuthenticate |
| derived_symbols: |
| - NewServerConn |
| summary: Panic on crafted authentication request message in golang.org/x/crypto/ssh |
| description: |- |
| Clients can cause a panic in SSH servers. An attacker can craft an |
| authentication request message for the “gssapi-with-mic” method which will |
| cause NewServerConn to panic via a nil pointer dereference if |
| ServerConfig.GSSAPIWithMICConfig is nil. |
| published: 2022-02-17T17:35:32Z |
| cves: |
| - CVE-2020-29652 |
| ghsas: |
| - GHSA-3vm4-22fp-5rfm |
| credits: |
| - Joern Schneewesiz (GitLab Security Research Team) |
| references: |
| - fix: https://go.dev/cl/278852 |
| - fix: https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8 |
| - web: https://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1 |
