Asymmetric denial of service In golang.org/x/crypto
Description
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.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 go | 0.0.0-20201216223049-8b5274cf687f | ||
go | 0.0.0-20201216223049-8b5274cf687f | ||
 debian 11 | 1:0.0~git20201221.eec23a3-1 | ||
debian 12 | 1:0.0~git20201221.eec23a3-1 | ||
debian 13 | 1:0.0~git20201221.eec23a3-1 | ||
debian 14 | 1:0.0~git20201221.eec23a3-1 | ||
 rpm rhel7 | - | - |
Aliases
1. 2. 3. 4. 5. 6. 7.
References
1. 2. 3. 4. 5. 6.