CVE-2023-25564

Katalog CVE

CVSS 8.2 · High EPSS 1,9%

Kerentanan Out-of-bounds Write pada gss-ntlmssp project gss-ntlmssp. Skor CVSS 3.1 8.2 (High) menurut NVD.

Deskripsi (NVD)

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0.

Rincian

Terbit di NVD

14 Februari 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.2 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

1,9% peluang dieksploitasi; lebih tinggi dari 79,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/gssapi/gss-ntlmssp/commit/c753000eb31835c0664e528fbc99378ae0cbe950 patch · advisory pihak ketiga
• https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 advisory pihak ketiga
• https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-r85x-q5px-9xfq advisory pihak ketiga