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{"affected_release": [{"advisory": "RHSA-2023:3097", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "gssntlmssp-0:1.2.0-1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-05-16T00:00:00Z"}], "bugzilla": {"description": "gssntlmssp: memory corruption when decoding UTF16 strings", "id": "2172020", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2172020"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-787", "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.", "A flaw was found in GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication. 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 the `ntlm_str_convert()` fails, which would leave `outlen` uninitialized. This issue 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, and can be triggered via the main `gss_accept_sec_context` entry point."], "name": "CVE-2023-25564", "public_date": "2023-02-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-25564\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-25564\nhttps://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-r85x-q5px-9xfq"], "threat_severity": "Moderate", "upstream_fix": "gssntlmssp 1.2.0"}