mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
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52 lines
2.7 KiB
JSON
52 lines
2.7 KiB
JSON
{
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"id": "CVE-2021-47068",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-02-29T23:15:08.170",
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"lastModified": "2024-02-29T23:15:08.170",
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"vulnStatus": "Received",
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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/nfc: fix use-after-free llcp_sock_bind/connect\n\nCommits 8a4cd82d (\"nfc: fix refcount leak in llcp_sock_connect()\")\nand c33b1cc62 (\"nfc: fix refcount leak in llcp_sock_bind()\")\nfixed a refcount leak bug in bind/connect but introduced a\nuse-after-free if the same local is assigned to 2 different sockets.\n\nThis can be triggered by the following simple program:\n int sock1 = socket( AF_NFC, SOCK_STREAM, NFC_SOCKPROTO_LLCP );\n int sock2 = socket( AF_NFC, SOCK_STREAM, NFC_SOCKPROTO_LLCP );\n memset( &addr, 0, sizeof(struct sockaddr_nfc_llcp) );\n addr.sa_family = AF_NFC;\n addr.nfc_protocol = NFC_PROTO_NFC_DEP;\n bind( sock1, (struct sockaddr*) &addr, sizeof(struct sockaddr_nfc_llcp) )\n bind( sock2, (struct sockaddr*) &addr, sizeof(struct sockaddr_nfc_llcp) )\n close(sock1);\n close(sock2);\n\nFix this by assigning NULL to llcp_sock->local after calling\nnfc_llcp_local_put.\n\nThis addresses CVE-2021-23134."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/18175fe17ae043a0b81e5d511f8817825784c299",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/18ae4a192a4496e48a5490b52812645d2413307c",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/26157c82ba756767b2bd66d28a71b1bc454447f6",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/374cdde4dcc9c909a60713abdbbf96d5e3e09f91",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/48fba458fe54cc2a980a05c13e6c19b8b2cfb610",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/6b7021ed36dabf29e56842e3408781cd3b82ef6e",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/c61760e6940dd4039a7f5e84a6afc9cdbf4d82b6",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/ccddad6dd28530e716448e594c9ca7c76ccd0570",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/e32352070bcac22be6ed8ab635debc280bb65b8c",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |