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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: multiple out-of-bounds read when decoding NTLM fields", "id": "2172019", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2172019"}, "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-125", "details": ["GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, multiple out-of-bounds reads when decoding NTLM fields can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of consistency of length of internal buffers. Although most applications will error out before accepting a singe input buffer of 4GB in length this could theoretically happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length. This can lead to a large, up to 65KB, out-of-bounds read which could cause a denial-of-service if it reads from unmapped memory. Version 1.2.0 contains a patch for the out-of-bounds reads.", "A flaw was found in GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication. Multiple out-of-bounds reads occur when decoding NTLM fields and can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of the consistency of the length of internal buffers. Although most applications will error out before accepting a single input buffer of 4GB in length, this issue can happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length, leading to a large, up to 65KB, out-of-bounds read, which could cause a denial of service if it reads from unmapped memory."], "name": "CVE-2023-25563", "public_date": "2023-02-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-25563\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-25563\nhttps://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-jjjx-5qf7-9mgf"], "threat_severity": "Moderate", "upstream_fix": "gssntlmssp 1.2.0"}