USN-4001-1

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Source
https://ubuntu.com/security/notices/USN-4001-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4001-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4001-1
Upstream
Related
Published
2019-05-30T21:45:56.901838Z
Modified
2025-07-16T08:32:47.114706Z
Summary
libseccomp vulnerability
Details

Jann Horn discovered that libseccomp did not correctly generate 64-bit syscall argument comparisons with arithmetic operators (LT, GT, LE, GE). An attacker could use this to bypass intended access restrictions for argument-filtered system calls.

References

Affected packages

Ubuntu:16.04:LTS / libseccomp

Package

Name
libseccomp
Purl
pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.16.04.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.1-0ubuntu0.16.04.2

Affected versions

2.*

2.2.3-2ubuntu1
2.2.3-2ubuntu2
2.2.3-2ubuntu3
2.2.3-3ubuntu1
2.2.3-3ubuntu3
2.3.1-2.1ubuntu2~16.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libseccomp-dev",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "libseccomp2-dbgsym",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
        },
        {
            "binary_name": "seccomp-dbgsym",
            "binary_version": "2.4.1-0ubuntu0.16.04.2"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / libseccomp

Package

Name
libseccomp
Purl
pkg:deb/ubuntu/libseccomp@2.4.1-0ubuntu0.18.04.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.1-0ubuntu0.18.04.2

Affected versions

2.*

2.3.1-2.1ubuntu3
2.3.1-2.1ubuntu4
2.3.1-2.1ubuntu4.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libseccomp-dev",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
        },
        {
            "binary_name": "libseccomp2",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
        },
        {
            "binary_name": "libseccomp2-dbgsym",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
        },
        {
            "binary_name": "seccomp",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
        },
        {
            "binary_name": "seccomp-dbgsym",
            "binary_version": "2.4.1-0ubuntu0.18.04.2"
        }
    ],
    "availability": "No subscription required"
}