mirror of
https://github.com/CVEProject/cvelist.git
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146 lines
7.7 KiB
JSON
146 lines
7.7 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2021-47010",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Only allow init netns to set default tcp cong to a restricted algo\n\ntcp_set_default_congestion_control() is netns-safe in that it writes\nto &net->ipv4.tcp_congestion_control, but it also sets\nca->flags |= TCP_CONG_NON_RESTRICTED which is not namespaced.\nThis has the unintended side-effect of changing the global\nnet.ipv4.tcp_allowed_congestion_control sysctl, despite the fact that it\nis read-only: 97684f0970f6 (\"net: Make tcp_allowed_congestion_control\nreadonly in non-init netns\")\n\nResolve this netns \"leak\" by only allowing the init netns to set the\ndefault algorithm to one that is restricted. This restriction could be\nremoved if tcp_allowed_congestion_control were namespace-ified in the\nfuture.\n\nThis bug was uncovered with\nhttps://github.com/JonathonReinhart/linux-netns-sysctl-verify"
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "6670e1524477",
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"version_value": "992de06308d9"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "4.15",
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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": "4.15",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "4.19.191",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "5.4.119",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "5.10.37",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "5.11.21",
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"lessThanOrEqual": "5.11.*",
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"status": "unaffected",
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"versionType": "custom"
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},
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{
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"version": "5.12.4",
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"lessThanOrEqual": "5.12.*",
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"status": "unaffected",
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"versionType": "custom"
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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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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/992de06308d9a9584d59b96d294ac676f924e437",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/992de06308d9a9584d59b96d294ac676f924e437"
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},
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{
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"url": "https://git.kernel.org/stable/c/9884f745108f7d25b189bbcd6754e284fb29ab68",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/9884f745108f7d25b189bbcd6754e284fb29ab68"
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},
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{
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"url": "https://git.kernel.org/stable/c/6c1ea8bee75df8fe2184a50fcd0f70bf82986f42",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/6c1ea8bee75df8fe2184a50fcd0f70bf82986f42"
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},
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{
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"url": "https://git.kernel.org/stable/c/efe1532a6e1a8e3c343d04fff510f0ed80328f9c",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/efe1532a6e1a8e3c343d04fff510f0ed80328f9c"
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},
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{
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"url": "https://git.kernel.org/stable/c/e7d7bedd507bb732e600403b7a96f9fe48d0ca31",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/e7d7bedd507bb732e600403b7a96f9fe48d0ca31"
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},
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{
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"url": "https://git.kernel.org/stable/c/8d432592f30fcc34ef5a10aac4887b4897884493",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/8d432592f30fcc34ef5a10aac4887b4897884493"
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}
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]
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},
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"generator": {
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"engine": "bippy-c298863b1525"
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}
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} |