Anolis OS update for mod_auth_openidc:2.3 module



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-3891
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Anolis OS
Operating systems & Components / Operating system

mod_auth_openidc
Operating systems & Components / Operating system package or component

cjose-devel
Operating systems & Components / Operating system package or component

cjose
Operating systems & Components / Operating system package or component

Vendor OpenAnolis

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU112073

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-3891

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when OIDCPreservePost is enabled in mod_auth_openidc. A remote attacker can send an HTTP POST request without a Content-Type header and crash the web server. 

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

mod_auth_openidc: before 2.4.9.4-8

cjose-devel: before 0.6.1-4

cjose: before 0.6.1-4

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2025:0261


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.



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