{"id":"CVE-2026-71221","aliases":["AZL-99900","DEBIAN-CVE-2026-71221","EUVD-2026-70449","GHSA-6q6f-22jw-g823","UBUNTU-CVE-2026-71221"],"status":"published","title":"Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked height in savemeta","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00134,"percentile":0.0299,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2026-09-03T12:23:17Z","modified":"2026-11-06T10:05:04Z","fixes":[{"ecosystem":"Debian:14","package":"gfs2-utils","fixed_in":["3.6.1-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.5.1-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.0-2","3.5.1-1","3.5.1-2","3.6.0-1","3.6.1-1","3.6.1-2","3.6.1-3"]},{"source":"osv","ecosystem":"Debian:13","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.1-1","3.6.1-2","3.6.1-3"]},{"source":"osv","ecosystem":"Debian:14","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.1-2"}]}],"versions":["3.6.1-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.6-0ubuntu2","3.1.6-0ubuntu3"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.9-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.0-2","3.2.0-3"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-2","3.4.1-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.5.1-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.1-1build1","3.6.1-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"gfs2-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.1-1","3.6.1-1build1"]}],"products":[{"vendor":"red hat","product":"red hat enterprise linux 7"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"},{"vendor":"redhat","product":"enterprise_linux"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-71221","tags":["vdb-entry","x_refsource_REDHAT","Vendor Advisory","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511396","tags":["issue-tracking","x_refsource_REDHAT","Issue Tracking","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71221","tags":["web"]},{"url":"https://github.com/advisories/GHSA-6q6f-22jw-g823"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-71221","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-71221","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-71221","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-71221","title":"Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked height in savemeta","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T12:23:17.596Z","modified":"2026-11-05T22:52:35.286Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-05T23:55:29.66083Z"}],"euvd":[{"id":"EUVD-2026-70449","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T12:23:17Z","modified":"2026-11-05T22:52:35Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-06T00:02:32.983223Z"}],"ghsa":[{"id":"GHSA-6q6f-22jw-g823","title":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value...","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T15:32:10Z","modified":"2026-09-03T15:32:11Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:11:18.49317Z"}],"nvd":[{"id":"CVE-2026-71221","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T13:06:02.887Z","modified":"2026-11-05T23:16:58.693Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-06T01:57:39.734161Z"}],"osv":[{"id":"DEBIAN-CVE-2026-71221","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T13:06:02.887Z","modified":"2026-11-06T10:05:04.145274736Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-06T10:38:22.758306Z"},{"id":"UBUNTU-CVE-2026-71221","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T13:06:00Z","modified":"2026-10-17T13:00:43.7632691Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:57:03.035847Z"},{"id":"AZL-99900","title":"CVE-2026-71221 affecting package gfs2-utils 3.5.1-1","description":"A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.","status":"published","published":"2026-09-03T13:06:02Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:26.480138Z"}]}}