openEuler update for curl

1) 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

openEuler: 20.03 LTS SP1 - 20.03 LTS SP2

curl-help: before 7.71.1-9

libcurl: before 7.71.1-9

curl-debugsource: before 7.71.1-9

libcurl-devel: before 7.71.1-9

curl-debuginfo: before 7.71.1-9

curl: before 7.71.1-9

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
• cpe:2.3:a:openeuler:curl-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libcurl:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:curl-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libcurl-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:curl-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:curl:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1300

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.