openEuler update for curl

1) Input validation error

EUVDB-ID: #VU66881

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-35252

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 the way curl handles cookies with control codes (byte values below 32). When cookies that contain such control codes are later sent back to an HTTP(S) server, it might make the server return a 400 response, effectively allowing a "sister site" to deny service to siblings.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

curl-help: before 7.71.1-18

curl-debugsource: before 7.71.1-18

libcurl: before 7.71.1-18

curl-debuginfo: before 7.71.1-18

libcurl-devel: before 7.71.1-18

curl: before 7.71.1-18

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
• cpe:2.3:o:openeuler:openeuler:22.03:LTS:*:*:*:*:*:*
• 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-2022-1908

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.