SUSE update for libmicrohttpd

1) Input validation error

EUVDB-ID: #VU74198

Risk: Medium

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

CVE-ID: CVE-2023-27371

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 insufficient validation of multipart/form-data data within the MHD_create_post_processor() method in the postprocessor.c. A remote attacker can send a specially crafted HTTP POST request to the server and perform a denial of service (DoS) attack.

Mitigation

Update the affected package libmicrohttpd to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.4

SUSE Linux Enterprise Micro: 5.4

libmicrohttpd-debugsource: before 0.9.57-150000.3.3.1

libmicrohttpd12-debuginfo: before 0.9.57-150000.3.3.1

libmicrohttpd12: before 0.9.57-150000.3.3.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libmicrohttpd-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libmicrohttpd12-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libmicrohttpd12:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231686-2/

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.