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{
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"data_version" : "4.0" ,
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"data_type" : "CVE" ,
"data_format" : "MITRE" ,
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"ID" : "CVE-2024-49948" ,
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"ASSIGNER" : "cve@kernel.org" ,
"STATE" : "PUBLIC"
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} ,
"description" : {
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{
"lang" : "eng" ,
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"value" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: add more sanity checks to qdisc_pkt_len_init()\n\nOne path takes care of SKB_GSO_DODGY, assuming\nskb->len is bigger than hdr_len.\n\nvirtio_net_hdr_to_skb() does not fully dissect TCP headers,\nit only make sure it is at least 20 bytes.\n\nIt is possible for an user to provide a malicious 'GSO' packet,\ntotal length of 80 bytes.\n\n- 20 bytes of IPv4 header\n- 60 bytes TCP header\n- a small gso_size like 8\n\nvirtio_net_hdr_to_skb() would declare this packet as a normal\nGSO packet, because it would see 40 bytes of payload,\nbigger than gso_size.\n\nWe need to make detect this case to not underflow\nqdisc_skb_cb(skb)->pkt_len."
}
]
} ,
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"description" : [
{
"lang" : "eng" ,
"value" : "n/a"
}
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"affects" : {
"vendor" : {
"vendor_data" : [
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"vendor_name" : "Linux" ,
"product" : {
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"product_name" : "Linux" ,
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"version_affected" : "<" ,
"version_name" : "1def9238d4aa" ,
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"version_value" : "d7d1a28f5dd5"
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} ,
{
"version_value" : "not down converted" ,
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"versions" : [
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"version" : "3.9" ,
"status" : "affected"
} ,
{
"version" : "0" ,
"lessThan" : "3.9" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
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{
"version" : "4.19.323" ,
"lessThanOrEqual" : "4.19.*" ,
"status" : "unaffected" ,
"versionType" : "semver"
} ,
{
"version" : "5.4.285" ,
"lessThanOrEqual" : "5.4.*" ,
"status" : "unaffected" ,
"versionType" : "semver"
} ,
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{
"version" : "5.10.227" ,
"lessThanOrEqual" : "5.10.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "5.15.168" ,
"lessThanOrEqual" : "5.15.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
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"lessThanOrEqual" : "6.1.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
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"lessThanOrEqual" : "6.6.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
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"version" : "6.10.14" ,
"lessThanOrEqual" : "6.10.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "6.11.3" ,
"lessThanOrEqual" : "6.11.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
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"version" : "6.12" ,
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"lessThanOrEqual" : "*" ,
"status" : "unaffected" ,
"versionType" : "original_commit_for_fix"
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] ,
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} ,
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{
"url" : "https://git.kernel.org/stable/c/566a931a1436d0e0ad13708ea55479b95426213c" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/566a931a1436d0e0ad13708ea55479b95426213c"
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{
"url" : "https://git.kernel.org/stable/c/2415f465730e48b6e38da1c7c097317bf5dd2d20" ,
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"name" : "https://git.kernel.org/stable/c/2415f465730e48b6e38da1c7c097317bf5dd2d20"
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{
"url" : "https://git.kernel.org/stable/c/27a8fabc54d2f960d47bdfbebf2bdc6e8a92a4c4" ,
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"name" : "https://git.kernel.org/stable/c/27a8fabc54d2f960d47bdfbebf2bdc6e8a92a4c4"
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"name" : "https://git.kernel.org/stable/c/9b0ee571d20a238a22722126abdfde61f1b2bdd0"
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"name" : "https://git.kernel.org/stable/c/ab9a9a9e9647392a19e7a885b08000e89c86b535"
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