{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47291","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T13:27:52.130Z","datePublished":"2024-05-21T14:35:16.071Z","dateUpdated":"2025-05-04T07:07:59.598Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:07:59.598Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions\n\nWhile running the self-tests on a KASAN enabled kernel, I observed a\nslab-out-of-bounds splat very similar to the one reported in\ncommit 821bbf79fe46 (\"ipv6: Fix KASAN: slab-out-of-bounds Read in\n fib6_nh_flush_exceptions\").\n\nWe additionally need to take care of fib6_metrics initialization\nfailure when the caller provides an nh.\n\nThe fix is similar, explicitly free the route instead of calling\nfib6_info_release on a half-initialized object."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/ipv6/route.c"],"versions":[{"version":"f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74","lessThan":"830251361425c5be044db4d826aaf304ea3d14c6","status":"affected","versionType":"git"},{"version":"f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74","lessThan":"ce8fafb68051fba52546f8bbe8621f7641683680","status":"affected","versionType":"git"},{"version":"f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74","lessThan":"115784bcccf135c3a3548098153413d76f16aae0","status":"affected","versionType":"git"},{"version":"f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74","lessThan":"8fb4792f091e608a0a1d353dfdf07ef55a719db5","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/ipv6/route.c"],"versions":[{"version":"5.3","status":"affected"},{"version":"0","lessThan":"5.3","status":"unaffected","versionType":"semver"},{"version":"5.4.136","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.54","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.13.6","lessThanOrEqual":"5.13.*","status":"unaffected","versionType":"semver"},{"version":"5.14","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":"5.3","versionEndExcluding":"5.4.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.10.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.13.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/830251361425c5be044db4d826aaf304ea3d14c6"},{"url":"https://git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680"},{"url":"https://git.kernel.org/stable/c/115784bcccf135c3a3548098153413d76f16aae0"},{"url":"https://git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5"}],"title":"ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:08.000Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/830251361425c5be044db4d826aaf304ea3d14c6","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/115784bcccf135c3a3548098153413d76f16aae0","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-19T18:51:27.837598Z","id":"CVE-2021-47291","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-08-19T18:52:14.586Z"}}]}}