UBUNTU-CVE-2023-32731

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Source
https://ubuntu.com/security/CVE-2023-32731
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-32731.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-32731
Upstream
Published
2023-06-09T11:15:00Z
Modified
2025-10-24T05:02:02Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005

References

Affected packages

Ubuntu:16.04:LTS

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@0.11.1-1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.10.2-1
0.11.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "0.11.1-1"
        },
        {
            "binary_name": "libgrpc0",
            "binary_version": "0.11.1-1"
        }
    ]
}

Ubuntu:18.04:LTS

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@1.3.2-1.1~build1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.2-1
1.3.2-1ubuntu1
1.3.2-1.1~build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc++-dev",
            "binary_version": "1.3.2-1.1~build1"
        },
        {
            "binary_name": "libgrpc++1",
            "binary_version": "1.3.2-1.1~build1"
        },
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "1.3.2-1.1~build1"
        },
        {
            "binary_name": "libgrpc3",
            "binary_version": "1.3.2-1.1~build1"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.3.2-1.1~build1"
        }
    ]
}

Ubuntu:20.04:LTS

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@1.16.1-1ubuntu5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.16.1-1
1.16.1-1ubuntu1
1.16.1-1ubuntu3
1.16.1-1ubuntu4
1.16.1-1ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc++-dev",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "libgrpc++1",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "libgrpc6",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.16.1-1ubuntu5"
        }
    ]
}

Ubuntu:22.04:LTS

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@1.30.2-3build6?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.30.2-3
1.30.2-3build1
1.30.2-3build3
1.30.2-3build5
1.30.2-3build6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc++-dev",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "libgrpc++1",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "libgrpc10",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.30.2-3build6"
        }
    ]
}

Ubuntu:24.04:LTS

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@1.51.1-4.1build5?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.1-3build3
1.51.1-3build4
1.51.1-4
1.51.1-4build1
1.51.1-4build2
1.51.1-4.1build3
1.51.1-4.1build4
1.51.1-4.1build5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc++-dev",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-4.1build5"
        }
    ]
}

Ubuntu:25.04

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@1.51.1-6?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.1-4.1ubuntu1
1.51.1-5
1.51.1-5build1
1.51.1-5build2
1.51.1-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc++-dev",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-6"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-6"
        }
    ]
}

Ubuntu:25.10

grpc

Package

Name
grpc
Purl
pkg:deb/ubuntu/grpc@1.51.1-6build1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.1-6
1.51.1-6build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgrpc++-dev",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "libgrpc-dev",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-6build1"
        }
    ]
}