CVE-2020-11931 Ubuntu modifications to pulseaudio to provide snap security enforcement could be unloaded

2020-05-1503:25:11

CWE-284

canonical

www.cve.org

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

AI Score

3.8

Confidence

High

EPSS

Percentile

12.6%

JSON

An Ubuntu-specific modification to Pulseaudio to provide security mediation for Snap-packaged applications was found to have a bypass of intended access restriction for snaps which plugs any of pulseaudio, audio-playback or audio-record via unloading the pulseaudio snap policy module. This issue affects: pulseaudio 1:8.0 versions prior to 1:8.0-0ubuntu3.12; 1:11.1 versions prior to 1:11.1-1ubuntu7.7; 1:13.0 versions prior to 1:13.0-1ubuntu1.2; 1:13.99.1 versions prior to 1:13.99.1-1ubuntu3.2;

CNA Affected

[
  {
    "product": "pulseaudio",
    "vendor": "Canonical",
    "versions": [
      {
        "lessThan": "1:8.0-0ubuntu3.12",
        "status": "affected",
        "version": "1:8.0",
        "versionType": "custom"
      },
      {
        "lessThan": "1:11.1-1ubuntu7.7",
        "status": "affected",
        "version": "1:11.1",
        "versionType": "custom"
      },
      {
        "lessThan": "1:13.0-1ubuntu1.2",
        "status": "affected",
        "version": "1:13.0",
        "versionType": "custom"
      },
      {
        "lessThan": "1:13.99.1-1ubuntu3.2",
        "status": "affected",
        "version": "1:13.99.1",
        "versionType": "custom"
      }
    ]
  }
]