{"containers":{"cna":{"affected":[{"product":"kernel","vendor":"n/a","versions":[{"status":"affected","version":"Not Known"}]}],"descriptions":[{"lang":"en","value":"A flaw was found in the way the dumpable flag setting was handled when certain SUID binaries executed its descendants. The prerequisite is a SUID binary that sets real UID equal to effective UID, and real GID equal to effective GID. The descendant will then have a dumpable value set to 1. As a result, if the descendant process crashes and core_pattern is set to a relative value, its core dump is stored in the current directory with uid:gid permissions. An unprivileged local user with eligible root SUID binary could use this flaw to place core dumps into root-owned directories, potentially resulting in escalation of privileges."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","description":"CWE-284 - Improper Access Control","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2022-08-26T15:25:39.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"tags":["x_refsource_MISC"],"url":"https://www.openwall.com/lists/oss-security/2021/10/20/2"},{"tags":["x_refsource_MISC"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2015046"},{"tags":["x_refsource_MISC"],"url":"https://access.redhat.com/security/cve/CVE-2021-3864"},{"tags":["x_refsource_MISC"],"url":"https://lore.kernel.org/all/20211221021744.864115-1-longman%40redhat.com/"},{"tags":["x_refsource_MISC"],"url":"https://lore.kernel.org/lkml/20211228170910.623156-1-wander%40redhat.com/"},{"tags":["x_refsource_MISC"],"url":"https://lore.kernel.org/all/20211226150310.GA992%401wt.eu/"},{"tags":["x_refsource_MISC"],"url":"https://security-tracker.debian.org/tracker/CVE-2021-3864"}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T17:09:09.586Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.openwall.com/lists/oss-security/2021/10/20/2"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2015046"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://access.redhat.com/security/cve/CVE-2021-3864"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://lore.kernel.org/all/20211221021744.864115-1-longman%40redhat.com/"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://lore.kernel.org/lkml/20211228170910.623156-1-wander%40redhat.com/"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://lore.kernel.org/all/20211226150310.GA992%401wt.eu/"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://security-tracker.debian.org/tracker/CVE-2021-3864"}]}]},"cveMetadata":{"assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","assignerShortName":"redhat","cveId":"CVE-2021-3864","datePublished":"2022-08-26T15:25:39.000Z","dateReserved":"2021-10-06T00:00:00.000Z","dateUpdated":"2024-08-03T17:09:09.586Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}