340 lines
17 KiB
JSON
340 lines
17 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2021-47250",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-04-10T18:59:19.537Z",
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"datePublished": "2024-05-21T14:19:46.886Z",
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"dateUpdated": "2026-05-11T13:50:51.843Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T13:50:51.843Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipv4: fix memory leak in netlbl_cipsov4_add_std\n\nReported by syzkaller:\nBUG: memory leak\nunreferenced object 0xffff888105df7000 (size 64):\ncomm \"syz-executor842\", pid 360, jiffies 4294824824 (age 22.546s)\nhex dump (first 32 bytes):\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\nbacktrace:\n[<00000000e67ed558>] kmalloc include/linux/slab.h:590 [inline]\n[<00000000e67ed558>] kzalloc include/linux/slab.h:720 [inline]\n[<00000000e67ed558>] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline]\n[<00000000e67ed558>] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416\n[<0000000006040154>] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739\n[<00000000204d7a1c>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\n[<00000000204d7a1c>] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800\n[<00000000c0d6a995>] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504\n[<00000000d78b9d2c>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\n[<000000009733081b>] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]\n[<000000009733081b>] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340\n[<00000000d5fd43b8>] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929\n[<000000000a2d1e40>] sock_sendmsg_nosec net/socket.c:654 [inline]\n[<000000000a2d1e40>] sock_sendmsg+0x139/0x170 net/socket.c:674\n[<00000000321d1969>] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350\n[<00000000964e16bc>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404\n[<000000001615e288>] __sys_sendmsg+0xd3/0x190 net/socket.c:2433\n[<000000004ee8b6a5>] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47\n[<00000000171c7cee>] entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nThe memory of doi_def->map.std pointing is allocated in\nnetlbl_cipsov4_add_std, but no place has freed it. It should be\nfreed in cipso_v4_doi_free which frees the cipso DOI resource."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/ipv4/cipso_ipv4.c"
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],
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"versions": [
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{
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"version": "96cb8e3313c7a12e026c1ed510522ae6f6023875",
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"lessThan": "212166510582631994be4f4b3fe15e10a03c1dd4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "96cb8e3313c7a12e026c1ed510522ae6f6023875",
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"lessThan": "086e92b1d68c6338535f715aad173f8cf4bfbc8c",
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"status": "affected",
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},
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{
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"version": "96cb8e3313c7a12e026c1ed510522ae6f6023875",
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"lessThan": "6dcea66d3bb519b426282588f38e884e07893c1f",
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"lessThan": "5340858147e3dc60913fb3dd0cbb758ec4a26e66",
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},
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"version": "96cb8e3313c7a12e026c1ed510522ae6f6023875",
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"lessThan": "398a24447eb60f060c8994221cb5ae6caf355fa1",
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"status": "affected",
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},
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{
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"version": "96cb8e3313c7a12e026c1ed510522ae6f6023875",
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"lessThan": "0ffb460be3abac86f884a8c548bb02724ec370f4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "96cb8e3313c7a12e026c1ed510522ae6f6023875",
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"lessThan": "d612c3f3fae221e7ea736d196581c2217304bbbc",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"net/ipv4/cipso_ipv4.c"
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],
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"versions": [
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{
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"version": "2.6.19",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.19",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.4.274",
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"lessThanOrEqual": "4.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.9.274",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.238",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.196",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.128",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.46",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.12.13",
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"lessThanOrEqual": "5.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.13",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.19",
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"references": [
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"url": "https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4"
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"url": "https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c"
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"url": "https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f"
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{
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"url": "https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66"
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},
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{
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"url": "https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1"
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},
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{
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"url": "https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663"
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},
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{
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"url": "https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc"
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}
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],
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"title": "net: ipv4: fix memory leak in netlbl_cipsov4_add_std",
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"x_generator": {
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"engine": "bippy-1.2.0"
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"type": "ssvc",
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"content": {
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"timestamp": "2024-06-12T15:04:20.108779Z",
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"id": "CVE-2021-47250",
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"options": [
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{
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"Exploitation": "none"
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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