{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2021-46992", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.949Z", "datePublished": "2024-02-28T08:13:17.814Z", "dateUpdated": "2024-08-04T05:24:38.466Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:00:09.217Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nftables: avoid overflows in nft_hash_buckets()\n\nNumber of buckets being stored in 32bit variables, we have to\nensure that no overflows occur in nft_hash_buckets()\n\nsyzbot injected a size == 0x40000000 and reported:\n\nUBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13\nshift exponent 64 is too large for 64-bit type 'long unsigned int'\nCPU: 1 PID: 29539 Comm: syz-executor.4 Not tainted 5.12.0-rc7-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n __dump_stack lib/dump_stack.c:79 [inline]\n dump_stack+0x141/0x1d7 lib/dump_stack.c:120\n ubsan_epilogue+0xb/0x5a lib/ubsan.c:148\n __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:327\n __roundup_pow_of_two include/linux/log2.h:57 [inline]\n nft_hash_buckets net/netfilter/nft_set_hash.c:411 [inline]\n nft_hash_estimate.cold+0x19/0x1e net/netfilter/nft_set_hash.c:652\n nft_select_set_ops net/netfilter/nf_tables_api.c:3586 [inline]\n nf_tables_newset+0xe62/0x3110 net/netfilter/nf_tables_api.c:4322\n nfnetlink_rcv_batch+0xa09/0x24b0 net/netfilter/nfnetlink.c:488\n nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:612 [inline]\n nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:630\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\n sock_sendmsg_nosec net/socket.c:654 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:674\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/netfilter/nft_set_hash.c" ], "versions": [ { "version": "0ed6389c483d", "lessThan": "2824cafc6a93", "status": "affected", "versionType": "git" }, { "version": "0ed6389c483d", "lessThan": "efcd730ddd6f", "status": "affected", "versionType": "git" }, { "version": "0ed6389c483d", "lessThan": "c77e2ef18167", "status": "affected", "versionType": "git" }, { "version": "0ed6389c483d", "lessThan": "72b49dd116ca", "status": "affected", "versionType": "git" }, { "version": "0ed6389c483d", "lessThan": "1e8ab479cfbe", "status": "affected", "versionType": "git" }, { "version": "0ed6389c483d", "lessThan": "a388d10961ff", "status": "affected", "versionType": "git" }, { "version": "0ed6389c483d", "lessThan": "a54754ec9891", "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/netfilter/nft_set_hash.c" ], "versions": [ { "version": "4.9", "status": "affected" }, { "version": "0", "lessThan": "4.9", "status": "unaffected", "versionType": "custom" }, { "version": "4.14.233", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.191", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.120", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.38", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.11.22", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.12.5", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2824cafc6a93792d9ad85939c499161214d84c4b" }, { "url": "https://git.kernel.org/stable/c/efcd730ddd6f25578bd31bfe703e593e2421d708" }, { "url": "https://git.kernel.org/stable/c/c77e2ef18167ad334e27610ced9a7f6af5ec1787" }, { "url": "https://git.kernel.org/stable/c/72b49dd116ca00a46a11d5a4d8d7987f05ed9cd7" }, { "url": "https://git.kernel.org/stable/c/1e8ab479cfbe5751efccedb95afb9b112a5ba475" }, { "url": "https://git.kernel.org/stable/c/a388d10961ff8578b1a6691945d406c0f33aa71b" }, { "url": "https://git.kernel.org/stable/c/a54754ec9891830ba548e2010c889e3c8146e449" } ], "title": "netfilter: nftables: avoid overflows in nft_hash_buckets()", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-46992", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-02-28T19:55:35.609531Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:13:05.125Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:38.466Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/2824cafc6a93792d9ad85939c499161214d84c4b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/efcd730ddd6f25578bd31bfe703e593e2421d708", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/c77e2ef18167ad334e27610ced9a7f6af5ec1787", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/72b49dd116ca00a46a11d5a4d8d7987f05ed9cd7", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1e8ab479cfbe5751efccedb95afb9b112a5ba475", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/a388d10961ff8578b1a6691945d406c0f33aa71b", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/a54754ec9891830ba548e2010c889e3c8146e449", "tags": [ "x_transferred" ] } ] } ] } }