{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47086","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-29T22:33:44.299Z","datePublished":"2024-03-04T18:06:12.239Z","dateUpdated":"2025-05-21T08:31:35.043Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-21T08:31:35.043Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nphonet/pep: refuse to enable an unbound pipe\n\nThis ioctl() implicitly assumed that the socket was already bound to\na valid local socket name, i.e. Phonet object. If the socket was not\nbound, two separate problems would occur:\n\n1) We'd send an pipe enablement request with an invalid source object.\n2) Later socket calls could BUG on the socket unexpectedly being\n   connected yet not bound to a valid object."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/phonet/pep.c"],"versions":[{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"b10c7d745615a092a50c2e03ce70446d2bec2aca","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"311601f114859d586d5ef8833d60d3aa23282161","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"982b6ba1ce626ef87e5c29f26f2401897554f235","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"48c76fc53582e7f13c1e0b11c916e503256c4d0b","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"52ad5da8e316fa11e3a50b3f089aa63e4089bf52","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"53ccdc73eedaf0e922c45b569b797d2796fbaafa","status":"affected","versionType":"git"},{"version":"bdb6e697b2a76c541960b86ab8fda88f3de1adf2","lessThan":"75a2f31520095600f650597c0ac41f48b5ba0068","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/phonet/pep.c"],"versions":[{"version":"3.3","status":"affected"},{"version":"0","lessThan":"3.3","status":"unaffected","versionType":"semver"},{"version":"4.4.297","lessThanOrEqual":"4.4.*","status":"unaffected","versionType":"semver"},{"version":"4.9.295","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.260","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.223","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.169","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.89","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.12","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"4.4.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"4.9.295"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"4.14.260"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"4.19.223"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.4.169"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.10.89"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.15.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.3","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59"},{"url":"https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca"},{"url":"https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161"},{"url":"https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235"},{"url":"https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b"},{"url":"https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52"},{"url":"https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa"},{"url":"https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068"}],"title":"phonet/pep: refuse to enable an unbound pipe","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47086","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-05T15:32:58.721616Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:13:34.498Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:24:39.798Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068","tags":["x_transferred"]}]}]}}