openEuler 20.03 LTS SP3 update for curl

1) Expected behavior violation

EUVDB-ID: #VU68746

Risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-32221

CWE-ID: CWE-440 - Expected Behavior Violation

Exploit availability: No

Description

The vulnerability allows a remote attacker to force unexpected application behavior.

The vulnerability exists due to a logic error for a reused handle when processing subsequent HTTP PUT and POST requests. The libcurl can erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously was used to issue a PUT request, which used that callback. As a result, such behavior can influence application flow and force unpredictable outcome.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

curl-help: before 7.71.1-19

curl-debugsource: before 7.71.1-19

libcurl: before 7.71.1-19

curl-debuginfo: before 7.71.1-19

libcurl-devel: before 7.71.1-19

curl: before 7.71.1-19

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:a:openeuler:curl-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:curl-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libcurl:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:curl-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:libcurl-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:curl:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2040

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.