{"id":"CVE-2023-27478","aliases":["AZL-25584","AZL-34932","BIT-libmemcached-2023-27478","BIT-memcached-2023-27478","DEBIAN-CVE-2023-27478","EUVD-2023-31250","GHSA-wwmh-39wj-fx59"],"status":"published","title":"Disclosure of unrelated data in libmemcached-awesome","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00749,"percentile":0.5543,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2023-03-07T17:55:39Z","modified":"2026-11-11T02:31:05Z","fixes":[{"ecosystem":"Azure Linux:2","package":"libmemcached-awesome","fixed_in":["1.1.4-1"],"sources":["osv"]},{"ecosystem":"Azure Linux:3","package":"libmemcached-awesome","fixed_in":["1.1.4-1"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"libmemcached","fixed_in":["1.1.4"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"memcached","fixed_in":["1.1.4"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"libmemcached","fixed_in":["1.1.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libmemcached","fixed_in":["1.1.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libmemcached","fixed_in":["1.1.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:2","package":"libmemcached-awesome","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.4-1"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"libmemcached-awesome","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.4-1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"libmemcached","ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.18"},{"fixed":"1.1.4"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"memcached","ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.18"},{"fixed":"1.1.4"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"libmemcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libmemcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libmemcached","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.4-1"}]}]}],"products":[{"vendor":"awesome","product":"libmemcached"},{"vendor":"awesomized","product":"libmemcached"}],"references":[{"url":"https://github.com/awesomized/libmemcached/security/advisories/GHSA-wwmh-39wj-fx59","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","advisory","web"]},{"url":"https://github.com/php-memcached-dev/php-memcached/issues/531","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","advisory","web","report"]},{"url":"https://github.com/awesomized/libmemcached/commit/48dcc61a","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/awesomized/libmemcached/releases/tag/1.1.4","tags":["x_refsource_MISC","x_transferred","Release Notes","article","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27478","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27478.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-27478","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-27478","title":"Disclosure of unrelated data in libmemcached-awesome ","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T17:55:39.172Z","modified":"2025-02-25T15:00:43.455Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:35:26.261013Z"}],"euvd":[{"id":"EUVD-2023-31250","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T17:55:39Z","modified":"2025-02-25T15:00:43Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:53:24.646946Z"}],"nvd":[{"id":"CVE-2023-27478","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T18:15:09.247Z","modified":"2026-06-17T05:45:17.623Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:07:48.342507Z"}],"osv":[{"id":"AZL-25584","title":"CVE-2023-27478 affecting package libmemcached-awesome for versions less than 1.1.4-1","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T18:15:09Z","modified":"2026-04-21T04:23:06.047529Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:03.093433Z"},{"id":"AZL-34932","title":"CVE-2023-27478 affecting package libmemcached-awesome for versions less than 1.1.4-1","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T18:15:09Z","modified":"2026-04-21T04:51:10.155688Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:03.821827Z"},{"id":"CVE-2023-27478","title":"Disclosure of unrelated data in libmemcached-awesome ","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T17:55:39.172Z","modified":"2026-11-11T10:30:40.476203441Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-11T02:50:43.46164Z"},{"id":"DEBIAN-CVE-2023-27478","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2023-03-07T18:15:09.247Z","modified":"2026-10-26T18:00:35.444060842Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:39.679062Z"},{"id":"BIT-libmemcached-2023-27478","title":"Disclosure of unrelated data in libmemcached-awesome ","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2024-03-06T10:55:12.076Z","modified":"2026-09-08T08:48:08.125745018Z","updated_at":"2026-11-02T15:28:32.162822Z"},{"id":"BIT-memcached-2023-27478","description":"libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous request timed out due to a low `POLL_TIMEOUT`. This issue has been addressed in version 1.1.4. Users are advised to upgrade. There are several ways to workaround or lower the probability of this bug affecting a given deployment. 1: use a reasonably high `POLL_TIMEOUT` setting, like the default. 2: use separate libmemcached connections for unrelated data. 3: do not re-use libmemcached connections in an unknown state.","status":"published","published":"2024-03-06T10:55:50.295Z","modified":"2025-10-15T02:27:16.43633Z","updated_at":"2026-11-02T15:28:33.072289Z"}]}}