USN-2956-1

Zygmunt Krynicki discovered that ubuntu-core-launcher did not properly sanitize its input and contained a logic error when determining the mountpoint of bind mounts when using snaps on Ubuntu classic systems (eg, traditional desktop and server). If a user were tricked into installing a malicious snap with a crafted snap name, an attacker could perform a delayed attack to steal data or execute code within the security context of another snap. This issue did not affect Ubuntu Core systems.

References

Affected packages

Ubuntu:16.04:LTS / ubuntu-core-launcher

Package

Name: ubuntu-core-launcher
Purl: pkg:deb/ubuntu/ubuntu-core-launcher@1.0.27.1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.0.27.1

Affected versions

1.*

1.0.9

1.0.10

1.0.13

1.0.14

1.0.17

1.0.18

1.0.19

1.0.20

1.0.22

1.0.23

1.0.25

1.0.25.1

1.0.27

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.0.27.1",
            "binary_name": "ubuntu-core-launcher"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2956-1.json"

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2016-1580",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        }
    ]
}