5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.6 Medium
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
68.9%
An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection.
CPE | Name | Operator | Version |
---|---|---|---|
golang:go | golang go | lt | 1.18.9 |
golang:go | golang go | lt | 1.19.4 |
golang:http2 | golang http2 | lt | 0.4.0 |
[
{
"vendor": "Go standard library",
"product": "net/http",
"collectionURL": "https://pkg.go.dev",
"packageName": "net/http",
"versions": [
{
"version": "0",
"lessThan": "1.18.9",
"status": "affected",
"versionType": "semver"
},
{
"version": "1.19.0-0",
"lessThan": "1.19.4",
"status": "affected",
"versionType": "semver"
}
],
"programRoutines": [
{
"name": "http2serverConn.canonicalHeader"
},
{
"name": "ListenAndServe"
},
{
"name": "ListenAndServeTLS"
},
{
"name": "Serve"
},
{
"name": "ServeTLS"
},
{
"name": "Server.ListenAndServe"
},
{
"name": "Server.ListenAndServeTLS"
},
{
"name": "Server.Serve"
},
{
"name": "Server.ServeTLS"
},
{
"name": "http2Server.ServeConn"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "golang.org/x/net",
"product": "golang.org/x/net/http2",
"collectionURL": "https://pkg.go.dev",
"packageName": "golang.org/x/net/http2",
"versions": [
{
"version": "0",
"lessThan": "0.4.0",
"status": "affected",
"versionType": "semver"
}
],
"programRoutines": [
{
"name": "serverConn.canonicalHeader"
},
{
"name": "Server.ServeConn"
}
],
"defaultStatus": "unaffected"
}
]
go.dev/cl/455635
go.dev/cl/455717
go.dev/issue/56350
groups.google.com/g/golang-announce/c/L_3rmdT0BMU/m/yZDrXjIiBQAJ
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pkg.go.dev/vuln/GO-2022-1144
security.gentoo.org/glsa/202311-09
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.6 Medium
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
68.9%