213 lines
9.5 KiB
JSON
213 lines
9.5 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2023-52779",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-05-21T15:19:24.240Z",
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"datePublished": "2024-05-21T15:30:58.899Z",
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"dateUpdated": "2026-05-11T19:32:58.602Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:32:58.602Z"
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},
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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\nfs: Pass AT_GETATTR_NOSEC flag to getattr interface function\n\nWhen vfs_getattr_nosec() calls a filesystem's getattr interface function\nthen the 'nosec' should propagate into this function so that\nvfs_getattr_nosec() can again be called from the filesystem's gettattr\nrather than vfs_getattr(). The latter would add unnecessary security\nchecks that the initial vfs_getattr_nosec() call wanted to avoid.\nTherefore, introduce the getattr flag GETATTR_NOSEC and allow to pass\nwith the new getattr_flags parameter to the getattr interface function.\nIn overlayfs and ecryptfs use this flag to determine which one of the\ntwo functions to call.\n\nIn a recent code change introduced to IMA vfs_getattr_nosec() ended up\ncalling vfs_getattr() in overlayfs, which in turn called\nsecurity_inode_getattr() on an exiting process that did not have\ncurrent->fs set anymore, which then caused a kernel NULL pointer\ndereference. With this change the call to security_inode_getattr() can\nbe avoided, thus avoiding the NULL pointer dereference."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ecryptfs/inode.c",
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"fs/overlayfs/inode.c",
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"fs/overlayfs/overlayfs.h",
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"fs/stat.c",
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"include/uapi/linux/fcntl.h"
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],
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"versions": [
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{
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"version": "db1d1e8b9867aae5c3e61ad7859abfcc4a6fd6c7",
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"lessThan": "3fb0fa08641903304b9d81d52a379ff031dc41d4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "db1d1e8b9867aae5c3e61ad7859abfcc4a6fd6c7",
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"lessThan": "8a924db2d7b5eb69ba08b1a0af46e9f1359a9bdf",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ecryptfs/inode.c",
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"fs/overlayfs/inode.c",
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"fs/overlayfs/overlayfs.h",
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"fs/stat.c",
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"include/uapi/linux/fcntl.h"
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],
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"versions": [
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{
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"version": "6.5",
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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": "6.5",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.4",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.7",
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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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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.6.4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.7"
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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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{
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"url": "https://git.kernel.org/stable/c/3fb0fa08641903304b9d81d52a379ff031dc41d4"
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},
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{
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"url": "https://git.kernel.org/stable/c/8a924db2d7b5eb69ba08b1a0af46e9f1359a9bdf"
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}
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],
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"title": "fs: Pass AT_GETATTR_NOSEC flag to getattr interface function",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"lang": "en",
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"description": "CWE-noinfo Not enough information"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-05-29T18:48:07.766160Z",
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"id": "CVE-2023-52779",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-11-06T14:23:53.810Z"
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}
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},
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-02T23:11:36.013Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3fb0fa08641903304b9d81d52a379ff031dc41d4",
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"tags": [
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"x_transferred"
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]
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},
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{
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"url": "https://git.kernel.org/stable/c/8a924db2d7b5eb69ba08b1a0af46e9f1359a9bdf",
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"tags": [
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"x_transferred"
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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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} |