Vulnerability identifier: #VU76196

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-25566

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gss-ntlmssp
/

Vendor: modauthgssapi

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when parsing usernames. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gss-ntlmssp: 0.1.0 - 1.1.0

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External links
http://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74
http://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0
http://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4

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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.