golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability
A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against 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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-29652US | high7.5 | — | ||
A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SS… | ||||
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references
External citations — patches, advisories, analysis.
- https://go-review.googlesource.com/c/crypto/+/278852WEB
- https://go.dev/cl/278852WEB
- https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8WEB
- https://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1WEB
- https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3EWEB
- https://nvd.nist.gov/vuln/detail/CVE-2020-29652ADVISORY
- https://pkg.go.dev/vuln/GO-2021-0227WEB
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