USN-5720-1

It was discovered that Zstandard was not properly managing file permissions when generating output files. A local attacker could possibly use this issue to cause a race condition and gain unauthorized access to sensitive data.

References

Affected packages

Ubuntu:Pro:16.04:LTS / libzstd

Package

Name: libzstd
Purl: pkg:deb/ubuntu/libzstd?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.3.1+dfsg-1~ubuntu0.16.04.1+esm3

Affected versions

0.*

0.4.5-1

0.5.1-1

1.*

1.3.1+dfsg-1~ubuntu0.16.04.1

1.3.1+dfsg-1~ubuntu0.16.04.1+esm1

1.3.1+dfsg-1~ubuntu0.16.04.1+esm2

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "zstd",
            "binary_version": "1.3.1+dfsg-1~ubuntu0.16.04.1+esm3"
        },
        {
            "binary_name": "libzstd1",
            "binary_version": "1.3.1+dfsg-1~ubuntu0.16.04.1+esm3"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": []
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5720-1.json"