openEuler update for podman



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-20188
CWE-ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
openEuler
Operating systems & Components / Operating system

podman-docker
Operating systems & Components / Operating system package or component

python3-pypodman
Operating systems & Components / Operating system package or component

python3-podman
Operating systems & Components / Operating system package or component

podman-debugsource
Operating systems & Components / Operating system package or component

podman-help
Operating systems & Components / Operating system package or component

podman-debuginfo
Operating systems & Components / Operating system package or component

podman
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security restrictions bypass

EUVDB-ID: #VU51017

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-20188

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to file permissions for non-root users running in a privileged container are not correctly checked. A local low-privileged user inside the container can access arbitrary files in the container despite file  permissions, e.g. even files owned by the root user inside the container are accessible.

Successful exploitation of the vulnerability may allow a local user to escalate privileges on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 20.03 LTS

podman-docker: before 0.10.1-8

python3-pypodman: before 0.10.1-8

python3-podman: before 0.10.1-8

podman-debugsource: before 0.10.1-8

podman-help: before 0.10.1-8

podman-debuginfo: before 0.10.1-8

podman: before 0.10.1-8

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1123


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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