{"id":"CVE-2019-11923","details":"In Mcrouter prior to v0.41.0, the deprecated ASCII parser would allocate a buffer to a user-specified length with no maximum length enforced, allowing for resource exhaustion or denial of service.","modified":"2026-04-11T08:55:54.773606Z","published":"2019-12-04T16:15:11.637Z","references":[{"type":"ADVISORY","url":"https://github.com/facebook/mcrouter/releases/tag/v0.41.0-release"},{"type":"ADVISORY","url":"https://www.facebook.com/security/advisories/cve-2019-11923"},{"type":"FIX","url":"https://github.com/facebook/mcrouter/commit/98ce6624cd2563cfdb5da3b2949d5e1e03867034"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/facebook/mcrouter","events":[{"introduced":"0"},{"fixed":"9ffd13e9ab6c2c02bd1f95a7169c9a69b1b6bc54"},{"fixed":"98ce6624cd2563cfdb5da3b2949d5e1e03867034"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.41.0"}]}}],"versions":["release-36-cve-fix","v0.10.0","v0.11.0","v0.12.0","v0.13.0","v0.14.0","v0.15.0","v0.16.0","v0.17.0","v0.18.0","v0.19.0","v0.20.0","v0.21.0","v0.22.0","v0.23.0","v0.24.0","v0.25.0","v0.26.0","v0.27.0","v0.28.0","v0.29.0","v0.30.0","v0.31.0","v0.32.0","v0.33.0","v0.34.0","v0.35.0","v0.36.0","v0.37.0","v0.38.0","v0.39.0","v0.41.0","v0.9.0"],"database_specific":{"vanir_signatures_modified":"2026-04-11T08:55:54Z","vanir_signatures":[{"target":{"file":"mcrouter/lib/network/McAsciiParser.h"},"signature_version":"v1","digest":{"threshold":0.9,"line_hashes":["204285751708632397820198096865362966590","218963596161198465424678146777078642599","275199152256098293863193008935329626627"]},"deprecated":false,"signature_type":"Line","id":"CVE-2019-11923-8c58217a","source":"https://github.com/facebook/mcrouter/commit/98ce6624cd2563cfdb5da3b2949d5e1e03867034"}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11923.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:N/A:H"}]}