USN-5149-1

Kevin Backhouse discovered that AccountsService incorrectly handled memory when performing certain language setting operations. A local attacker could use this issue to escalate privileges.

References

Affected packages

Ubuntu:20.04:LTS / accountsservice

Package

Name: accountsservice
Purl: pkg:deb/ubuntu/accountsservice@0.6.55-0ubuntu12~20.04.5?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.6.55-0ubuntu12~20.04.5

Affected versions

0.*

0.6.55-0ubuntu10

0.6.55-0ubuntu11

0.6.55-0ubuntu12~20.04.1

0.6.55-0ubuntu12~20.04.2

0.6.55-0ubuntu12~20.04.4

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.55-0ubuntu12~20.04.5"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.55-0ubuntu12~20.04.5"
        },
        {
            "binary_name": "libaccountsservice-dev",
            "binary_version": "0.6.55-0ubuntu12~20.04.5"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.55-0ubuntu12~20.04.5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5149-1.json"

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ],
            "id": "CVE-2021-3939"
        }
    ]
}