Anolis OS update for curl (Anolis OS 8.4)



| Updated: 2025-03-28
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-22922
CVE-2021-22923
CVE-2021-22924
CWE-ID CWE-611
CWE-522
CWE-295
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Anolis OS
Operating systems & Components / Operating system

libcurl-minimal
Operating systems & Components / Operating system package or component

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

libcurl
Operating systems & Components / Operating system package or component

curl
Operating systems & Components / Operating system package or component

Vendor OpenAnolis

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) XML External Entity injection

EUVDB-ID: #VU55148

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22922

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

libcurl-minimal: before 7.61.1-18

libcurl-devel: before 7.61.1-18

libcurl: before 7.61.1-18

curl: before 7.61.1-18

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2021:0076


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.

2) Insufficiently protected credentials

EUVDB-ID: #VU55145

Risk: Medium

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

CVE-ID: CVE-2021-22923

CWE-ID: CWE-522 - Insufficiently Protected Credentials

Exploit availability: No

Description

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

The vulnerability exists due to insufficiently protected credentials. A remote attacker can gain access to sensitive information on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

libcurl-minimal: before 7.61.1-18

libcurl-devel: before 7.61.1-18

libcurl: before 7.61.1-18

curl: before 7.61.1-18

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2021:0076


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.

3) Improper Certificate Validation

EUVDB-ID: #VU55146

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22924

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

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

The vulnerability exists due to errors in the logic when the config matching function does not take "issuer cert" into account and it compares the involved paths case insensitively. A remote attacker can gain access to sensitive information on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

libcurl-minimal: before 7.61.1-18

libcurl-devel: before 7.61.1-18

libcurl: before 7.61.1-18

curl: before 7.61.1-18

CPE2.3 External links

https://anas.openanolis.cn/errata/detail/ANSA-2021:0076


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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