openEuler 20.03 LTS SP1 update for curl

1) Use-after-free

EUVDB-ID: #VU70456

Risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-43552

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error while processing denied requests from HTTP proxies when using SMB or TELNET protocols. A remote attacker can trigger a use-after-free error and crash the application.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1

curl-help: before 7.71.1-20

libcurl: before 7.71.1-20

curl-debugsource: before 7.71.1-20

curl-debuginfo: before 7.71.1-20

libcurl-devel: before 7.71.1-20

curl: before 7.71.1-20

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
• 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: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-2023-1005

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.