runc up to 1.0.0-rc8 AppArmor rootfs_linux.go authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in runc up to 1.0.0-rc8. Affected is an unknown function of the file libcontainer/rootfs_linux.go of the component AppArmor. Executing a manipulation can lead to authorization. This vulnerability is handled as CVE-2019-16884. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in runc up to 1.0.0-rc8. It has been declared as critical. This vulnerability affects an unknown part of the file libcontainer/rootfs_linux.go of the component AppArmor. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory.

The weakness was released 09/25/2019 (Website). The advisory is available at lists.fedoraproject.org. This vulnerability was named CVE-2019-16884 since 09/25/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 234786 (Amazon Linux AMI : runc (ALAS-2021-1556)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (234786), EUVD (EUVD-2022-0981) and CERT Bund (WID-SEC-2025-2547). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source docker

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234786
Nessus Name: Amazon Linux AMI : runc (ALAS-2021-1556)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/25/2019 🔍
09/25/2019 +0 days 🔍
09/26/2019 +1 days 🔍
03/17/2026 +2364 days 🔍

Sourcesinfo

Advisory: RHSA-2019:3940
Status: Not defined

CVE: CVE-2019-16884 (🔍)
GCVE (CVE): GCVE-0-2019-16884
GCVE (VulDB): GCVE-100-142306
EUVD: 🔍
CERT Bund: WID-SEC-2025-2547 - docker: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Entryinfo

Created: 09/26/2019 12:50
Updated: 03/17/2026 02:06
Changes: 09/26/2019 12:50 (53), 09/09/2020 09:07 (1), 12/28/2023 10:00 (3), 04/24/2025 14:25 (16), 02/07/2026 19:46 (7), 03/17/2026 02:06 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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