411 lines
14 KiB
JSON
411 lines
14 KiB
JSON
{
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"schema_version": "1.7.0",
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"id": "USN-4367-2",
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"summary": "linux regression",
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"details": "USN-4367-1 fixed vulnerabilities in the 5.4 Linux kernel. Unfortunately,\nthat update introduced a regression in overlayfs. This update corrects\nthe problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that the btrfs implementation in the Linux kernel did not\n properly detect that a block was marked dirty in some situations. An\n attacker could use this to specially craft a file system image that, when\n unmounted, could cause a denial of service (system crash). (CVE-2019-19377)\n\n It was discovered that the linux kernel did not properly validate certain\n mount options to the tmpfs virtual memory file system. A local attacker\n with the ability to specify mount options could use this to cause a denial\n of service (system crash). (CVE-2020-11565)\n\n It was discovered that the block layer in the Linux kernel contained a race\n condition leading to a use-after-free vulnerability. A local attacker could\n possibly use this to cause a denial of service (system crash) or execute\n arbitrary code. (CVE-2020-12657)\n",
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"aliases": [],
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"upstream": [],
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"related": [],
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"published": "2020-05-28T22:46:00Z",
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"modified": "2026-04-22T07:36:38Z",
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"affected": [
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{
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"package": {
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"ecosystem": "Ubuntu:20.04:LTS",
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{
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{
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"references": [
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{
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"type": "ADVISORY",
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"url": "https://ubuntu.com/security/notices/USN-4367-2"
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},
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{
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"type": "REPORT",
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"url": "https://launchpad.net/bugs/1879690"
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}
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]
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} |