{"id":"CVE-2018-12088","aliases":["DEBIAN-CVE-2018-12088","EUVD-2018-4068","GHSA-49xr-rr65-3xpc","UBUNTU-CVE-2018-12088"],"status":"published","title":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an...","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01855,"percentile":0.79324,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2018-06-10T23:00:00Z","modified":"2026-10-24T10:30:20Z","fixes":[{"ecosystem":"Debian:13","package":"s3ql","fixed_in":["2.27.1+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"s3ql","fixed_in":["2.27.1+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:13","package":"s3ql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27.1+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"s3ql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27.1+dfsg-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"s3ql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.13+dfsg-2","2.15+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"s3ql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.23+dfsg-1","2.24+dfsg-1","2.25+dfsg-1","2.26+dfsg-1ubuntu1","2.26+dfsg-1ubuntu2","2.26+dfsg-3ubuntu1","2.26+dfsg-4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"s3ql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2+dfsg-3","3.3.2+dfsg-1","3.3.2+dfsg-1ubuntu1"]}],"products":[{"vendor":"s3ql_project","product":"s3ql"}],"references":[{"url":"https://bitbucket.org/nikratio/s3ql/issues/272/t3_verifypy-test_retrieve-sometimes-fails","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Third Party Advisory","evidence","report"]},{"url":"https://groups.google.com/forum/#%21topic/s3ql/4TzCVIMkA4o","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://bitbucket.org/nikratio/s3ql/commits/85aba5c2d5c81453a73a50ed638adaeef0521020","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-12088"},{"url":"https://groups.google.com/forum/#!topic/s3ql/4TzCVIMkA4o","tags":["report"]},{"url":"https://github.com/advisories/GHSA-49xr-rr65-3xpc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-12088","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-12088","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-12088","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-12088","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2018-06-10T23:00:00Z","modified":"2024-09-16T20:16:55.515Z","updated_at":"2026-11-02T14:35:06.679212Z"}],"euvd":[{"id":"EUVD-2018-4068","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2018-06-10T23:00:00Z","modified":"2024-09-16T20:16:55Z","updated_at":"2026-11-03T00:55:15.468069Z"}],"ghsa":[{"id":"GHSA-49xr-rr65-3xpc","title":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an...","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2022-05-14T01:27:12Z","modified":"2023-02-02T05:03:35Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:51:40.509164Z"}],"nvd":[{"id":"CVE-2018-12088","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2018-06-10T23:29:00.22Z","modified":"2026-06-17T01:37:07.863Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:29.837913Z"}],"osv":[{"id":"CVE-2018-12088","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2018-06-10T23:29:00.22Z","modified":"2026-10-24T10:30:20.113315579Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:07.934182Z"},{"id":"DEBIAN-CVE-2018-12088","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2018-06-10T23:29:00.22Z","modified":"2026-10-23T18:03:53.733721968Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:29.988046Z"},{"id":"UBUNTU-CVE-2018-12088","description":"S3QL before 2.27 mishandles checksumming, and consequently allows replay attacks in which an attacker who controls the backend can present old versions of the filesystem metadata database as up-to-date, temporarily inject zero-valued bytes into files, or temporarily hide parts of files. This is related to the checksum_basic_mapping function.","status":"published","published":"2018-06-10T23:29:00Z","modified":"2025-10-24T04:47:03Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:16.544091Z"}]}}