{"id":"AZL-43441","summary":"CVE-2023-25564 affecting package gssntlmssp 0.9.0-2","details":"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.","modified":"2026-04-01T05:15:07.495981Z","published":"2023-02-14T18:15:13Z","upstream":["CVE-2023-25564"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-25564"}],"affected":[{"package":{"name":"gssntlmssp","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/gssntlmssp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.9.0-2"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-43441.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"}]}