CVE-2021-47250 (GCVE-0-2021-47250)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2025-05-04 07:07
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ipv4: fix memory leak in netlbl_cipsov4_add_std Reported by syzkaller: BUG: memory leak unreferenced object 0xffff888105df7000 (size 64): comm "syz-executor842", pid 360, jiffies 4294824824 (age 22.546s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000e67ed558>] kmalloc include/linux/slab.h:590 [inline] [<00000000e67ed558>] kzalloc include/linux/slab.h:720 [inline] [<00000000e67ed558>] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline] [<00000000e67ed558>] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416 [<0000000006040154>] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739 [<00000000204d7a1c>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] [<00000000204d7a1c>] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800 [<00000000c0d6a995>] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504 [<00000000d78b9d2c>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 [<000000009733081b>] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] [<000000009733081b>] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340 [<00000000d5fd43b8>] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929 [<000000000a2d1e40>] sock_sendmsg_nosec net/socket.c:654 [inline] [<000000000a2d1e40>] sock_sendmsg+0x139/0x170 net/socket.c:674 [<00000000321d1969>] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350 [<00000000964e16bc>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404 [<000000001615e288>] __sys_sendmsg+0xd3/0x190 net/socket.c:2433 [<000000004ee8b6a5>] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47 [<00000000171c7cee>] entry_SYSCALL_64_after_hwframe+0x44/0xae The memory of doi_def->map.std pointing is allocated in netlbl_cipsov4_add_std, but no place has freed it. It should be freed in cipso_v4_doi_free which frees the cipso DOI resource.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < 212166510582631994be4f4b3fe15e10a03c1dd4 (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < 086e92b1d68c6338535f715aad173f8cf4bfbc8c (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < 6dcea66d3bb519b426282588f38e884e07893c1f (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < 5340858147e3dc60913fb3dd0cbb758ec4a26e66 (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < 398a24447eb60f060c8994221cb5ae6caf355fa1 (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < deeeb65c6ee404f2d1fb80b38b2730645c0f4663 (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < 0ffb460be3abac86f884a8c548bb02724ec370f4 (git)
Affected: 96cb8e3313c7a12e026c1ed510522ae6f6023875 , < d612c3f3fae221e7ea736d196581c2217304bbbc (git)
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    Linux Linux Affected: 2.6.19
Unaffected: 0 , < 2.6.19 (semver)
Unaffected: 4.4.274 , ≤ 4.4.* (semver)
Unaffected: 4.9.274 , ≤ 4.9.* (semver)
Unaffected: 4.14.238 , ≤ 4.14.* (semver)
Unaffected: 4.19.196 , ≤ 4.19.* (semver)
Unaffected: 5.4.128 , ≤ 5.4.* (semver)
Unaffected: 5.10.46 , ≤ 5.10.* (semver)
Unaffected: 5.12.13 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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    "dateUpdated": "2025-05-04T07:07:08.871Z",
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      "descriptions": "[{\"lang\": \"en\", \"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[\u003c00000000e67ed558\u003e] kmalloc include/linux/slab.h:590 [inline]\\n[\u003c00000000e67ed558\u003e] kzalloc include/linux/slab.h:720 [inline]\\n[\u003c00000000e67ed558\u003e] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline]\\n[\u003c00000000e67ed558\u003e] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416\\n[\u003c0000000006040154\u003e] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739\\n[\u003c00000000204d7a1c\u003e] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\\n[\u003c00000000204d7a1c\u003e] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800\\n[\u003c00000000c0d6a995\u003e] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504\\n[\u003c00000000d78b9d2c\u003e] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\\n[\u003c000000009733081b\u003e] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]\\n[\u003c000000009733081b\u003e] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340\\n[\u003c00000000d5fd43b8\u003e] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929\\n[\u003c000000000a2d1e40\u003e] sock_sendmsg_nosec net/socket.c:654 [inline]\\n[\u003c000000000a2d1e40\u003e] sock_sendmsg+0x139/0x170 net/socket.c:674\\n[\u003c00000000321d1969\u003e] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350\\n[\u003c00000000964e16bc\u003e] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404\\n[\u003c000000001615e288\u003e] __sys_sendmsg+0xd3/0x190 net/socket.c:2433\\n[\u003c000000004ee8b6a5\u003e] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47\\n[\u003c00000000171c7cee\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\nThe memory of doi_def-\u003emap.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.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ipv4: corrige la p\\u00e9rdida de memoria en netlbl_cipsov4_add_std. Reportado por syzkaller: BUG: p\\u00e9rdida de memoria objeto sin referencia 0xffff888105df7000 (tama\\u00f1o 64): comm \\\"syz-executor842\\\", pid 360, jiffies 4294824824 ( edad 22,546 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [\u0026lt;00000000e67ed558\u0026gt;] kmalloc include/linux/slab.h:590 [en l\\u00ednea] [\u0026lt;00000000e67ed558\u0026gt; ] kzalloc include/linux/slab.h:720 [en l\\u00ednea] [\u0026lt;00000000e67ed558\u0026gt;] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [en l\\u00ednea] [\u0026lt;00000000e67ed558\u0026gt;] netlbl_cipsov4_add+0x390/0x234 0 net/netlabel/netlabel_cipso_v4.c: 416 [\u0026lt;0000000006040154\u0026gt;] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739 [\u0026lt;00000000204d7a1c\u0026gt;] genl_family_rcv_msg net/netlink/genetlink.c:783 [en l\\u00ednea] 00000204d7a1c\u0026gt;] genl_rcv_msg+0x2bf /0x4f0 net/netlink/genetlink.c:800 [\u0026lt;00000000c0d6a995\u0026gt;] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504 [\u0026lt;00000000d78b9d2c\u0026gt;] genl_rcv+0x24/0x40 11 [ \u0026lt;000000009733081b\u0026gt;] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [en l\\u00ednea] [\u0026lt;000000009733081b\u0026gt;] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340 [\u0026lt;00000000d5fd43b8\u0026gt;] enviar mensaje+0x789/0xc70 net/netlink/ af_netlink.c:1929 [\u0026lt;000000000a2d1e40\u0026gt;] sock_sendmsg_nosec net/socket.c:654 [en l\\u00ednea] [\u0026lt;000000000a2d1e40\u0026gt;] sock_sendmsg+0x139/0x170 net/socket.c:674 [\u0026lt;00000000321d19 69\u0026gt;] ____sys_sendmsg+0x658/0x7d0 neto/ socket.c:2350 [\u0026lt;00000000964e16bc\u0026gt;] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404 [\u0026lt;000000001615e288\u0026gt;] __sys_sendmsg+0xd3/0x190 net/socket.c:2433 4ee8b6a5\u0026gt;] do_syscall_64+0x37/0x90 arco /x86/entry/common.c:47 [\u0026lt;00000000171c7cee\u0026gt;] Entry_SYSCALL_64_after_hwframe+0x44/0xae La memoria de apuntamiento doi_def-\u0026gt;map.std est\\u00e1 asignada en netlbl_cipsov4_add_std, pero no se ha liberado ning\\u00fan lugar. Debe liberarse en cipso_v4_doi_free, lo que libera el recurso cipso DOI.\"}]",
      "id": "CVE-2021-47250",
      "lastModified": "2024-12-30T19:00:27.217",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2024-05-21T15:15:13.930",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-401\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47250\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:13.930\",\"lastModified\":\"2024-12-30T19:00:27.217\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"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[\u003c00000000e67ed558\u003e] kmalloc include/linux/slab.h:590 [inline]\\n[\u003c00000000e67ed558\u003e] kzalloc include/linux/slab.h:720 [inline]\\n[\u003c00000000e67ed558\u003e] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline]\\n[\u003c00000000e67ed558\u003e] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416\\n[\u003c0000000006040154\u003e] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739\\n[\u003c00000000204d7a1c\u003e] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\\n[\u003c00000000204d7a1c\u003e] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800\\n[\u003c00000000c0d6a995\u003e] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504\\n[\u003c00000000d78b9d2c\u003e] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\\n[\u003c000000009733081b\u003e] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]\\n[\u003c000000009733081b\u003e] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340\\n[\u003c00000000d5fd43b8\u003e] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929\\n[\u003c000000000a2d1e40\u003e] sock_sendmsg_nosec net/socket.c:654 [inline]\\n[\u003c000000000a2d1e40\u003e] sock_sendmsg+0x139/0x170 net/socket.c:674\\n[\u003c00000000321d1969\u003e] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350\\n[\u003c00000000964e16bc\u003e] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404\\n[\u003c000000001615e288\u003e] __sys_sendmsg+0xd3/0x190 net/socket.c:2433\\n[\u003c000000004ee8b6a5\u003e] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47\\n[\u003c00000000171c7cee\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\nThe memory of doi_def-\u003emap.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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ipv4: corrige la p\u00e9rdida de memoria en netlbl_cipsov4_add_std. Reportado por syzkaller: BUG: p\u00e9rdida de memoria objeto sin referencia 0xffff888105df7000 (tama\u00f1o 64): comm \\\"syz-executor842\\\", pid 360, jiffies 4294824824 ( edad 22,546 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [\u0026lt;00000000e67ed558\u0026gt;] kmalloc include/linux/slab.h:590 [en l\u00ednea] [\u0026lt;00000000e67ed558\u0026gt; ] kzalloc include/linux/slab.h:720 [en l\u00ednea] [\u0026lt;00000000e67ed558\u0026gt;] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [en l\u00ednea] [\u0026lt;00000000e67ed558\u0026gt;] netlbl_cipsov4_add+0x390/0x234 0 net/netlabel/netlabel_cipso_v4.c: 416 [\u0026lt;0000000006040154\u0026gt;] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739 [\u0026lt;00000000204d7a1c\u0026gt;] genl_family_rcv_msg net/netlink/genetlink.c:783 [en l\u00ednea] 00000204d7a1c\u0026gt;] genl_rcv_msg+0x2bf /0x4f0 net/netlink/genetlink.c:800 [\u0026lt;00000000c0d6a995\u0026gt;] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504 [\u0026lt;00000000d78b9d2c\u0026gt;] genl_rcv+0x24/0x40 11 [ \u0026lt;000000009733081b\u0026gt;] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [en l\u00ednea] [\u0026lt;000000009733081b\u0026gt;] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340 [\u0026lt;00000000d5fd43b8\u0026gt;] enviar mensaje+0x789/0xc70 net/netlink/ af_netlink.c:1929 [\u0026lt;000000000a2d1e40\u0026gt;] sock_sendmsg_nosec net/socket.c:654 [en l\u00ednea] [\u0026lt;000000000a2d1e40\u0026gt;] sock_sendmsg+0x139/0x170 net/socket.c:674 [\u0026lt;00000000321d19 69\u0026gt;] ____sys_sendmsg+0x658/0x7d0 neto/ socket.c:2350 [\u0026lt;00000000964e16bc\u0026gt;] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404 [\u0026lt;000000001615e288\u0026gt;] __sys_sendmsg+0xd3/0x190 net/socket.c:2433 4ee8b6a5\u0026gt;] do_syscall_64+0x37/0x90 arco /x86/entry/common.c:47 [\u0026lt;00000000171c7cee\u0026gt;] Entry_SYSCALL_64_after_hwframe+0x44/0xae La memoria de apuntamiento doi_def-\u0026gt;map.std est\u00e1 asignada en netlbl_cipsov4_add_std, pero no se ha liberado ning\u00fan lugar. Debe liberarse en cipso_v4_doi_free, lo que libera el recurso cipso DOI.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.19\",\"versionEndExcluding\":\"4.4.274\",\"matchCriteriaId\":\"78A0388D-0E2E-49EC-B4C3-1B049F186183\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.5\",\"versionEndExcluding\":\"4.9.274\",\"matchCriteriaId\":\"0A84D5BC-006F-41C5-A54D-6D45236009B3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.238\",\"matchCriteriaId\":\"C3C0DBBF-0923-4D2A-9178-134691F9933F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.196\",\"matchCriteriaId\":\"F3CAB837-7D38-4934-AD4F-195CEFD754E6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.128\",\"matchCriteriaId\":\"6267BD4E-BE25-48B5-B850-4B493440DAFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.46\",\"matchCriteriaId\":\"59455D13-A902-42E1-97F7-5ED579777193\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.13\",\"matchCriteriaId\":\"7806E7E5-6D4F-4E18-81C1-79B3C60EE855\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA610E30-717C-4700-9F77-A3C9244F3BFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1ECD33F5-85BE-430B-8F86-8D7BD560311D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF351855-2437-4CF5-AD7C-BDFA51F27683\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"25A855BA-2118-44F2-90EF-EBBB12AF51EF\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:32:07.879Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47250\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-12T15:04:20.108779Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-12T15:04:26.659Z\"}}], \"cna\": {\"title\": \"net: ipv4: fix memory leak in netlbl_cipsov4_add_std\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"212166510582\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"086e92b1d68c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"6dcea66d3bb5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"5340858147e3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"398a24447eb6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"deeeb65c6ee4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"0ffb460be3ab\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"96cb8e3313c7\", \"lessThan\": \"d612c3f3fae2\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv4/cipso_ipv4.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.4.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.238\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.196\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.128\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.46\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv4/cipso_ipv4.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/212166510582631994be4f4b3fe15e10a03c1dd4\"}, {\"url\": \"https://git.kernel.org/stable/c/086e92b1d68c6338535f715aad173f8cf4bfbc8c\"}, {\"url\": \"https://git.kernel.org/stable/c/6dcea66d3bb519b426282588f38e884e07893c1f\"}, {\"url\": \"https://git.kernel.org/stable/c/5340858147e3dc60913fb3dd0cbb758ec4a26e66\"}, {\"url\": \"https://git.kernel.org/stable/c/398a24447eb60f060c8994221cb5ae6caf355fa1\"}, {\"url\": \"https://git.kernel.org/stable/c/deeeb65c6ee404f2d1fb80b38b2730645c0f4663\"}, {\"url\": \"https://git.kernel.org/stable/c/0ffb460be3abac86f884a8c548bb02724ec370f4\"}, {\"url\": \"https://git.kernel.org/stable/c/d612c3f3fae221e7ea736d196581c2217304bbbc\"}], \"x_generator\": {\"engine\": \"bippy-c8e10e5f6187\"}, \"descriptions\": [{\"lang\": \"en\", \"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[\u003c00000000e67ed558\u003e] kmalloc include/linux/slab.h:590 [inline]\\n[\u003c00000000e67ed558\u003e] kzalloc include/linux/slab.h:720 [inline]\\n[\u003c00000000e67ed558\u003e] netlbl_cipsov4_add_std net/netlabel/netlabel_cipso_v4.c:145 [inline]\\n[\u003c00000000e67ed558\u003e] netlbl_cipsov4_add+0x390/0x2340 net/netlabel/netlabel_cipso_v4.c:416\\n[\u003c0000000006040154\u003e] genl_family_rcv_msg_doit.isra.0+0x20e/0x320 net/netlink/genetlink.c:739\\n[\u003c00000000204d7a1c\u003e] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]\\n[\u003c00000000204d7a1c\u003e] genl_rcv_msg+0x2bf/0x4f0 net/netlink/genetlink.c:800\\n[\u003c00000000c0d6a995\u003e] netlink_rcv_skb+0x134/0x3d0 net/netlink/af_netlink.c:2504\\n[\u003c00000000d78b9d2c\u003e] genl_rcv+0x24/0x40 net/netlink/genetlink.c:811\\n[\u003c000000009733081b\u003e] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]\\n[\u003c000000009733081b\u003e] netlink_unicast+0x4a0/0x6a0 net/netlink/af_netlink.c:1340\\n[\u003c00000000d5fd43b8\u003e] netlink_sendmsg+0x789/0xc70 net/netlink/af_netlink.c:1929\\n[\u003c000000000a2d1e40\u003e] sock_sendmsg_nosec net/socket.c:654 [inline]\\n[\u003c000000000a2d1e40\u003e] sock_sendmsg+0x139/0x170 net/socket.c:674\\n[\u003c00000000321d1969\u003e] ____sys_sendmsg+0x658/0x7d0 net/socket.c:2350\\n[\u003c00000000964e16bc\u003e] ___sys_sendmsg+0xf8/0x170 net/socket.c:2404\\n[\u003c000000001615e288\u003e] __sys_sendmsg+0xd3/0x190 net/socket.c:2433\\n[\u003c000000004ee8b6a5\u003e] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:47\\n[\u003c00000000171c7cee\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\nThe memory of doi_def-\u003emap.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.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T11:37:36.435Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47250\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T11:37:36.435Z\", \"dateReserved\": \"2024-04-10T18:59:19.537Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:19:46.886Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.