{"id":"GHSA-vpjr-h6fh-mw4p","summary":"Duplicate Advisory: EVE Freely Allocates Buffer on The Stack With Data From Socket","details":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-phcg-h58r-gmcq. This link is maintained to preserve external references.\n\n### Original Description\nAs noted in the “VTPM.md” file in the eve documentation, “VTPM is a server listening on port\n8877 in EVE, exposing limited functionality of the TPM to the clients. \nVTPM allows clients to\nexecute tpm2-tools binaries from a list of hardcoded options”\nThe communication with this server is done using protobuf, and the data is comprised of 2\nparts:\n\n1. Header\n\n2. Data\n\nWhen a connection is made, the server is waiting for 4 bytes of data, which will be the header,\nand these 4 bytes would be parsed as uint32 size of the actual data to come.\n\nThen, in the function “handleRequest” this size is then used in order to allocate a payload on\nthe stack for the incoming data.\n\nAs this payload is allocated on the stack, this will allow overflowing the stack size allocated for\nthe relevant process with freely controlled data.\n\n* An attacker can crash the system. \n* An attacker can gain control over the system, specifically on the “vtpm_server” process\nwhich has very high privileges.","modified":"2026-02-04T21:05:25.808528Z","published":"2023-09-21T15:30:15Z","withdrawn":"2026-02-04T20:46:55Z","database_specific":{"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"2026-02-04T20:46:55Z","nvd_published_at":"2023-09-21T14:15:11Z","cwe_ids":["CWE-770","CWE-789"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43632"},{"type":"WEB","url":"https://asrg.io/security-advisories/cve-2023-43632"},{"type":"WEB","url":"https://asrg.io/security-advisories/freely-allocate-buffer-on-the-stack-with-data-from-socket"}],"affected":[{"package":{"name":"github.com/lf-edge/eve","ecosystem":"Go","purl":"pkg:golang/github.com/lf-edge/eve"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20230519072751-977f42b07fa9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/09/GHSA-vpjr-h6fh-mw4p/GHSA-vpjr-h6fh-mw4p.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}