Vulnerability identifier: #VU76195

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-2023-25565

CWE-ID: CWE-763

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gss-ntlmssp
/

Vendor: modauthgssapi

Description

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

The vulnerability exists due to a boundary condition when decoding target information. A remote attacker can send specially crafted NTLM request to the application, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Gss-ntlmssp: 0.1.0 - 1.1.0

---

External links
http://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0
http://github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64
http://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg

---

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.