Privilege escalation in Apptainer



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-30549
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Apptainer
Client/Desktop applications / Virtualization software

Vendor The Apptainer Container Project

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU79800

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-2023-30549

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in ext4 support. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


Mitigation

Install update from vendor's website.

Vulnerable software versions

Apptainer: 1.1.0 - 1.1.7

CPE2.3 External links

https://access.redhat.com/security/cve/cve-2022-1184
https://www.suse.com/security/cve/CVE-2022-1184.html
https://ubuntu.com/security/CVE-2022-1184
https://github.com/apptainer/apptainer/security/advisories/GHSA-j4rf-7357-f4cg
https://github.com/apptainer/apptainer/commit/5a4964f5ba9c8d89a0e353b97f51fd607670a9f7
https://security-tracker.debian.org/tracker/CVE-2022-1184
https://github.com/apptainer/apptainer/releases/tag/v1.1.8
https://github.com/torvalds/linux/commit/4f04351888a83e595571de672e0a4a8b74f
https://lwn.net/Articles/932136/
https://lwn.net/Articles/932137/
https://github.com/torvalds/linux/commit/2220eaf90992c11d888fe771055d4de3303
https://sylabs.io/2023/04/response-to-cve-2023-30549/


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.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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