Anolis OS update for container-tools:an8 module

1) Security features bypass

EUVDB-ID: #VU85991

Risk: High

CVSSv4.0: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2024-21626

CWE-ID: CWE-254 - Security Features

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an internal file descriptor leak that can cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace or a malicious image to allow a container process to gain access to the host filesystem through runc run. A remote attacker can trick the victim into loading a malicious image to bypass sandbox restrictions and execute arbitrary code on the host OS.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

runc: before 1.1.9-2.0.1

fuse-overlayfs: before 1.12-1.0.1

udica: before 0.2.6-20

libslirp-devel: before 4.4.0-1

libslirp: before 4.4.0-1

CPE2.3

• cpe:2.3:o:openanolis:anolis_os:8:*:*:*:*:*:*:*
• cpe:2.3:a:openanolis:runc:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:fuse-overlayfs:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:udica:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:libslirp-devel:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:libslirp:*:*:*:*:*:anolis_os:*:*

External links

https://anas.openanolis.cn/errata/detail/ANSA-2024:0046

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.