ghsa-3vm4-22fp-5rfm
Vulnerability from github
Published
2022-05-24 22:01
Modified
2023-07-12 20:45
Severity
Summary
golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability
Details
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.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "golang.org/x/crypto"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20201216223049-8b5274cf687f"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-29652"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T00:29:05Z",
"nvd_published_at": "2020-12-17T05:15:00Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-3vm4-22fp-5rfm",
"modified": "2023-07-12T20:45:53Z",
"published": "2022-05-24T22:01:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29652"
},
{
"type": "WEB",
"url": "https://go-review.googlesource.com/c/crypto/+/278852"
},
{
"type": "WEB",
"url": "https://go.dev/cl/278852"
},
{
"type": "WEB",
"url": "https://go.googlesource.com/crypto/+/8b5274cf687fd9316b4108863654cc57385531e8"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/ouZIlBimOsE?pli=1"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r68032132c0399c29d6cdc7bd44918535da54060a10a12b1591328bff@%3Cnotifications.skywalking.apache.org%3E"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2021-0227"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "golang.org/x/crypto/ssh NULL Pointer Dereference vulnerability"
}
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