CWE-362
Allowed-with-ReviewConcurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Abstraction: Class · Status: Draft
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
2900 vulnerabilities reference this CWE, most recent first.
GHSA-3F3Q-Q5CJ-PHC5
Vulnerability from github – Published: 2025-09-16 15:32 – Updated: 2026-05-12 15:31In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix race with concurrent opens in rename(2)
Besides sending the rename request to the server, the rename process also involves closing any deferred close, waiting for outstanding I/O to complete as well as marking all existing open handles as deleted to prevent them from deferring closes, which increases the race window for potential concurrent opens on the target file.
Fix this by unhashing the dentry in advance to prevent any concurrent opens on the target.
{
"affected": [],
"aliases": [
"CVE-2025-39825"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-16T13:16:01Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix race with concurrent opens in rename(2)\n\nBesides sending the rename request to the server, the rename process\nalso involves closing any deferred close, waiting for outstanding I/O\nto complete as well as marking all existing open handles as deleted to\nprevent them from deferring closes, which increases the race window\nfor potential concurrent opens on the target file.\n\nFix this by unhashing the dentry in advance to prevent any concurrent\nopens on the target.",
"id": "GHSA-3f3q-q5cj-phc5",
"modified": "2026-05-12T15:31:08Z",
"published": "2025-09-16T15:32:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39825"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/24b9ed739c8c5b464d983e12cf308982f3ae93c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/289f945acb20b9b54fe4d13895e44aa58965ddb2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c9991af5e09924f6f3b3e6996a5e09f9504b4358"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c9e7de284da0be5b44dbe79d71573f9f7f9b144c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d84291fc7453df7881a970716f8256273aca5747"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3F53-58PP-PG79
Vulnerability from github – Published: 2022-02-17 00:00 – Updated: 2023-11-09 15:30A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
{
"affected": [],
"aliases": [
"CVE-2021-3752"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-16T19:15:00Z",
"severity": "HIGH"
},
"details": "A use-after-free flaw was found in the Linux kernel\u2019s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
"id": "GHSA-3f53-58pp-pg79",
"modified": "2023-11-09T15:30:25Z",
"published": "2022-02-17T00:00:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3752"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1999544"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/lkml/20211115165435.133245729@linuxfoundation.org"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220318-0009"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5096"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2021/09/15/4"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2022.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3F69-XHQ6-C8M8
Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2022-05-24 17:05Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
{
"affected": [],
"aliases": [
"CVE-2019-17010"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-08T22:15:00Z",
"severity": "MODERATE"
},
"details": "Under certain conditions, when checking the Resist Fingerprinting preference during device orientation checks, a race condition could have caused a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 68.3, Firefox ESR \u003c 68.3, and Firefox \u003c 71.",
"id": "GHSA-3f69-xhq6-c8m8",
"modified": "2022-05-24T17:05:48Z",
"published": "2022-05-24T17:05:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-17010"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0292"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0295"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1581084"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-02"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-10"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4241-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4335-1"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-36"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-37"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-38"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3F6R-V6W8-RW99
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-06-16 03:30In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: Fix race condition during PASID entry replacement
The Intel VT-d PASID table entry is 512 bits (64 bytes). When replacing an active PASID entry (e.g., during domain replacement), the current implementation calculates a new entry on the stack and copies it to the table using a single structure assignment.
struct pasid_entry *pte, new_pte;
pte = intel_pasid_get_entry(dev, pasid);
pasid_pte_config_first_level(iommu, &new_pte, ...);
*pte = new_pte;
Because the hardware may fetch the 512-bit PASID entry in multiple 128-bit chunks, updating the entire entry while it is active (Present bit set) risks a "torn" read. In this scenario, the IOMMU hardware could observe an inconsistent state — partially new data and partially old data — leading to unpredictable behavior or spurious faults.
Fix this by removing the unsafe "replace" helpers and following the "clear-then-update" flow, which ensures the Present bit is cleared and the required invalidation handshake is completed before the new configuration is applied.
{
"affected": [],
"aliases": [
"CVE-2026-45945"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:10Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix race condition during PASID entry replacement\n\nThe Intel VT-d PASID table entry is 512 bits (64 bytes). When replacing\nan active PASID entry (e.g., during domain replacement), the current\nimplementation calculates a new entry on the stack and copies it to the\ntable using a single structure assignment.\n\n struct pasid_entry *pte, new_pte;\n\n pte = intel_pasid_get_entry(dev, pasid);\n pasid_pte_config_first_level(iommu, \u0026new_pte, ...);\n *pte = new_pte;\n\nBecause the hardware may fetch the 512-bit PASID entry in multiple\n128-bit chunks, updating the entire entry while it is active (Present\nbit set) risks a \"torn\" read. In this scenario, the IOMMU hardware\ncould observe an inconsistent state \u2014 partially new data and partially\nold data \u2014 leading to unpredictable behavior or spurious faults.\n\nFix this by removing the unsafe \"replace\" helpers and following the\n\"clear-then-update\" flow, which ensures the Present bit is cleared and\nthe required invalidation handshake is completed before the new\nconfiguration is applied.",
"id": "GHSA-3f6r-v6w8-rw99",
"modified": "2026-06-16T03:30:32Z",
"published": "2026-05-27T15:33:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45945"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/66a7aff480a82b8642b3991fed5fdc9780022157"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c3b1edea3791fa91ab7032faa90355913ad9451b"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3FHQ-QFFP-RP75
Vulnerability from github – Published: 2022-05-14 03:54 – Updated: 2022-05-14 03:54Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.
{
"affected": [],
"aliases": [
"CVE-2016-9806"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-12-28T07:59:00Z",
"severity": "HIGH"
},
"details": "Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.",
"id": "GHSA-3fhq-qffp-rp75",
"modified": "2022-05-14T03:54:59Z",
"published": "2022-05-14T03:54:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9806"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:1842"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2077"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:2669"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1401502"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2017-03-01.html"
},
{
"type": "WEB",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520"
},
{
"type": "WEB",
"url": "http://lists.openwall.net/netdev/2016/05/15/69"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/12/03/4"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/94653"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1037968"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3FR2-34QF-C3PM
Vulnerability from github – Published: 2022-12-22 21:30 – Updated: 2025-04-16 15:34When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox < 96, Thunderbird < 91.6, and Firefox ESR < 91.6.
{
"affected": [],
"aliases": [
"CVE-2022-22763"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-22T20:15:00Z",
"severity": "HIGH"
},
"details": "When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox \u003c 96, Thunderbird \u003c 91.6, and Firefox ESR \u003c 91.6.",
"id": "GHSA-3fr2-34qf-c3pm",
"modified": "2025-04-16T15:34:07Z",
"published": "2022-12-22T21:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22763"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1740534"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-01"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-05"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-06"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3FR6-PGC4-QMRV
Vulnerability from github – Published: 2025-09-05 18:31 – Updated: 2026-05-12 15:31In the Linux kernel, the following vulnerability has been resolved:
NFS: Fix a race when updating an existing write
After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a call to nfs_inode_remove_request() from succeeding until we actually lock the page group. The reason is that whoever called nfs_inode_remove_request() doesn't necessarily have a lock on the page group head.
So in order to avoid races, let's take the page group lock earlier in nfs_lock_and_join_requests(), and hold it across the removal of the request in nfs_inode_remove_request().
{
"affected": [],
"aliases": [
"CVE-2025-39697"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-05T18:15:46Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix a race when updating an existing write\n\nAfter nfs_lock_and_join_requests() tests for whether the request is\nstill attached to the mapping, nothing prevents a call to\nnfs_inode_remove_request() from succeeding until we actually lock the\npage group.\nThe reason is that whoever called nfs_inode_remove_request() doesn\u0027t\nnecessarily have a lock on the page group head.\n\nSo in order to avoid races, let\u0027s take the page group lock earlier in\nnfs_lock_and_join_requests(), and hold it across the removal of the\nrequest in nfs_inode_remove_request().",
"id": "GHSA-3fr6-pgc4-qmrv",
"modified": "2026-05-12T15:31:03Z",
"published": "2025-09-05T18:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39697"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0ff42a32784e0f2cb46a46da8e9f473538c13e1b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/181feb41f0b268e6288bf9a7b984624d7fe2031d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/202a3432d21ac060629a760fff3b0a39859da3ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/76d2e3890fb169168c73f2e4f8375c7cc24a765e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/92278ae36935a54e65fef9f8ea8efe7e80481ace"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c32e3c71aaa1c1ba05da88605e2ddd493c58794f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f230d40147cc37eb3aef4d50e2e2c06ea73d9a77"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3FVG-7MC6-3R87
Vulnerability from github – Published: 2022-05-17 05:24 – Updated: 2024-03-21 03:33** DISPUTED ** Race condition in Outpost Security Suite Pro 6.7.3.3063.452.0726 and 7.0.3330.505.1221 BETA on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute.
{
"affected": [],
"aliases": [
"CVE-2010-5171"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2012-08-25T21:55:00Z",
"severity": "MODERATE"
},
"details": "** DISPUTED ** Race condition in Outpost Security Suite Pro 6.7.3.3063.452.0726 and 7.0.3330.505.1221 BETA on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute.",
"id": "GHSA-3fvg-7mc6-3r87",
"modified": "2024-03-21T03:33:10Z",
"published": "2022-05-17T05:24:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2010-5171"
},
{
"type": "WEB",
"url": "http://archives.neohapsis.com/archives/bugtraq/2010-05/0026.html"
},
{
"type": "WEB",
"url": "http://archives.neohapsis.com/archives/fulldisclosure/2010-05/0066.html"
},
{
"type": "WEB",
"url": "http://countermeasures.trendmicro.eu/you-just-cant-trust-a-drunk"
},
{
"type": "WEB",
"url": "http://matousec.com/info/advisories/khobe-8.0-earthquake-for-windows-desktop-security-software.php"
},
{
"type": "WEB",
"url": "http://matousec.com/info/articles/khobe-8.0-earthquake-for-windows-desktop-security-software.php"
},
{
"type": "WEB",
"url": "http://www.f-secure.com/weblog/archives/00001949.html"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/67660"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/39924"
},
{
"type": "WEB",
"url": "http://www.theregister.co.uk/2010/05/07/argument_switch_av_bypass"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-3FX9-M26F-8R8G
Vulnerability from github – Published: 2022-05-24 19:18 – Updated: 2022-05-24 19:18In multiple methods of AAudioService, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11Android ID: A-153358911
{
"affected": [],
"aliases": [
"CVE-2021-0483"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-22T14:15:00Z",
"severity": "HIGH"
},
"details": "In multiple methods of AAudioService, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11Android ID: A-153358911",
"id": "GHSA-3fx9-m26f-8r8g",
"modified": "2022-05-24T19:18:38Z",
"published": "2022-05-24T19:18:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0483"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2021-10-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-3FXJ-V6Q3-J2XG
Vulnerability from github – Published: 2023-08-07 06:30 – Updated: 2024-04-04 06:35In imgsys, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07420968; Issue ID: ALPS07420968.
{
"affected": [],
"aliases": [
"CVE-2023-20801"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-07T04:15:13Z",
"severity": "MODERATE"
},
"details": "In imgsys,\u00a0there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07420968; Issue ID: ALPS07420968.",
"id": "GHSA-3fxj-v6q3-j2xg",
"modified": "2024-04-04T06:35:05Z",
"published": "2023-08-07T06:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20801"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/August-2023"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
Mitigation
Use thread-safe capabilities such as the data access abstraction in Spring.
Mitigation
- Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
- Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
When using multithreading and operating on shared variables, only use thread-safe functions.
Mitigation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
Mitigation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
Mitigation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
Mitigation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Mitigation
Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.
Mitigation MIT-17
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
CAPEC-26: Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.