mirror of
https://github.com/CVEProject/cvelist.git
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100 lines
3.9 KiB
JSON
100 lines
3.9 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-2023-23586",
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"ASSIGNER": "security@google.com",
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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": "Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit 788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring"
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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": "CWE-416 Use After Free",
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"cweId": "CWE-416"
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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 Kernel",
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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": "5.6",
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"version_value": "5.10.161"
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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/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93",
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"refsource": "MISC",
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"name": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93"
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},
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{
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"url": "https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93",
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"refsource": "MISC",
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"name": "https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93"
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}
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]
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},
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"generator": {
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"engine": "Vulnogram 0.1.0-dev"
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},
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"source": {
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"discovery": "EXTERNAL"
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},
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"credits": [
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{
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"lang": "en",
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"value": "Bing-Jhong Billy Jheng of Starlabs"
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}
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],
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"impact": {
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"cvss": [
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{
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"attackComplexity": "LOW",
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"attackVector": "LOCAL",
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"availabilityImpact": "NONE",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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"version": "3.1"
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}
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]
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}
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} |