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.
3161 vulnerabilities reference this CWE, most recent first.
GHSA-G3G5-XM8M-GP96
Vulnerability from github – Published: 2024-05-01 06:31 – Updated: 2025-09-18 15:30In the Linux kernel, the following vulnerability has been resolved:
s390/cio: fix race condition during online processing
A race condition exists in ccw_device_set_online() that can cause the online process to fail, leaving the affected device in an inconsistent state. As a result, subsequent attempts to set that device online fail with return code ENODEV.
The problem occurs when a path verification request arrives after a wait for final device state completed, but before the result state is evaluated.
Fix this by ensuring that the CCW-device lock is held between determining final state and checking result state.
Note that since:
commit 2297791c92d0 ("s390/cio: dont unregister subchannel from child-drivers")
path verification requests are much more likely to occur during boot, resulting in an increased chance of this race condition occurring.
{
"affected": [],
"aliases": [
"CVE-2024-27009"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-01T06:15:19Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cio: fix race condition during online processing\n\nA race condition exists in ccw_device_set_online() that can cause the\nonline process to fail, leaving the affected device in an inconsistent\nstate. As a result, subsequent attempts to set that device online fail\nwith return code ENODEV.\n\nThe problem occurs when a path verification request arrives after\na wait for final device state completed, but before the result state\nis evaluated.\n\nFix this by ensuring that the CCW-device lock is held between\ndetermining final state and checking result state.\n\nNote that since:\n\ncommit 2297791c92d0 (\"s390/cio: dont unregister subchannel from child-drivers\")\n\npath verification requests are much more likely to occur during boot,\nresulting in an increased chance of this race condition occurring.",
"id": "GHSA-g3g5-xm8m-gp96",
"modified": "2025-09-18T15:30:21Z",
"published": "2024-05-01T06:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27009"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2d8527f2f911fab84aec04df4788c0c23af3df48"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2df56f4ea769ff81e51bbb05699989603bde9c49"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3076b3c38a704e10df5e143c213653309d532538"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/559f3a6333397ab6cd4a696edd65a70b6be62c6e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a4234decd0fe429832ca81c4637be7248b88b49e"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW"
}
],
"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-G42F-VPM6-47X9
Vulnerability from github – Published: 2022-05-13 01:15 – Updated: 2022-05-13 01:15Race condition in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges, and consequently read the contents of arbitrary kernel memory locations, via a crafted application, a different vulnerability than other CVEs listed in MS13-016.
{
"affected": [],
"aliases": [
"CVE-2013-1276"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-02-13T12:04:00Z",
"severity": "MODERATE"
},
"details": "Race condition in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges, and consequently read the contents of arbitrary kernel memory locations, via a crafted application, a different vulnerability than other CVEs listed in MS13-016.",
"id": "GHSA-g42f-vpm6-47x9",
"modified": "2022-05-13T01:15:47Z",
"published": "2022-05-13T01:15:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1276"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-016"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16432"
},
{
"type": "WEB",
"url": "http://www.us-cert.gov/cas/techalerts/TA13-043B.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-G4FC-6WPG-63M2
Vulnerability from github – Published: 2022-05-24 16:57 – Updated: 2024-04-04 02:01The Mozilla Maintenance Service does not guard against files being hardlinked to another file in the updates directory, allowing for the replacement of local files, including the Maintenance Service executable, which is run with privileged access. Additionally, there was a race condition during checks for junctions and symbolic links by the Maintenance Service, allowing for potential local file and directory manipulation to be undetected in some circumstances. This allows for potential privilege escalation by a user with unprivileged local access.
Note: These attacks requires local system access and only affects Windows. Other operating systems are not affected.. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.
{
"affected": [],
"aliases": [
"CVE-2019-11736"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-27T18:15:00Z",
"severity": "HIGH"
},
"details": "The Mozilla Maintenance Service does not guard against files being hardlinked to another file in the updates directory, allowing for the replacement of local files, including the Maintenance Service executable, which is run with privileged access. Additionally, there was a race condition during checks for junctions and symbolic links by the Maintenance Service, allowing for potential local file and directory manipulation to be undetected in some circumstances. This allows for potential privilege escalation by a user with unprivileged local access. \u003cbr\u003e*Note: These attacks requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Firefox \u003c 69 and Firefox ESR \u003c 68.1.",
"id": "GHSA-g4fc-6wpg-63m2",
"modified": "2024-04-04T02:01:32Z",
"published": "2022-05-24T16:57:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11736"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1551913"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552206"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-25"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-26"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G4HF-8P4F-P7G3
Vulnerability from github – Published: 2025-11-14 03:30 – Updated: 2025-11-14 18:31Inappropriate implementation in DevTools in Google Chrome prior to 126.0.6478.182 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2024-7017"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-14T03:15:55Z",
"severity": "HIGH"
},
"details": "Inappropriate implementation in DevTools in Google Chrome prior to 126.0.6478.182 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-g4hf-8p4f-p7g3",
"modified": "2025-11-14T18:31:37Z",
"published": "2025-11-14T03:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7017"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/07/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/338248595"
}
],
"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-G4MQ-6FP5-QWCF
Vulnerability from github – Published: 2021-04-20 16:46 – Updated: 2024-11-18 16:26A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p "; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc//cmdline'.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "ansible"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7.17"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "ansible"
},
"ranges": [
{
"events": [
{
"introduced": "2.8.0a1"
},
{
"fixed": "2.8.11"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "ansible"
},
"ranges": [
{
"events": [
{
"introduced": "2.9.0a1"
},
{
"fixed": "2.9.7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-1733"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-377",
"CWE-668"
],
"github_reviewed": true,
"github_reviewed_at": "2021-04-05T18:50:43Z",
"nvd_published_at": "2020-03-11T19:15:00Z",
"severity": "LOW"
},
"details": "A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with \"umask 77 \u0026\u0026 mkdir -p \u003cdir\u003e\"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating \u0027/proc/\u003cpid\u003e/cmdline\u0027.",
"id": "GHSA-g4mq-6fp5-qwcf",
"modified": "2024-11-18T16:26:12Z",
"published": "2021-04-20T16:46:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1733"
},
{
"type": "WEB",
"url": "https://github.com/ansible/ansible/issues/67791"
},
{
"type": "WEB",
"url": "https://github.com/ansible/ansible/commit/80b9a0a25c5f75e84aefc8f2b293fb1933b154f2"
},
{
"type": "WEB",
"url": "https://github.com/ansible/ansible/commit/8251d9f4c2bc82632ab992277fcd30ccbf87aa47"
},
{
"type": "WEB",
"url": "https://github.com/ansible/ansible/commit/ecf99d5e1ff732a7777010facd6c98bb0994605e"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1733"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-g4mq-6fp5-qwcf"
},
{
"type": "PACKAGE",
"url": "https://github.com/ansible/ansible"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2020-5.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00005.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202006-11"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4950"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L",
"type": "CVSS_V4"
}
],
"summary": "Ansible vulnerable to Exposure of Resource to Wrong Sphere and Insecure Temporary File"
}
GHSA-G5PF-W8R8-3M5M
Vulnerability from github – Published: 2022-05-17 00:18 – Updated: 2022-05-17 00:18Race condition in LoginUIFramework in Apple Mac OS X 10.7.x before 10.7.4, when the Guest account is enabled, allows physically proximate attackers to login to arbitrary accounts by entering the account name and no password.
{
"affected": [],
"aliases": [
"CVE-2012-0656"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2012-05-11T03:49:00Z",
"severity": "MODERATE"
},
"details": "Race condition in LoginUIFramework in Apple Mac OS X 10.7.x before 10.7.4, when the Guest account is enabled, allows physically proximate attackers to login to arbitrary accounts by entering the account name and no password.",
"id": "GHSA-g5pf-w8r8-3m5m",
"modified": "2022-05-17T00:18:18Z",
"published": "2022-05-17T00:18:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-0656"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/May/msg00001.html"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT5281"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/53445"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/53459"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-G5R8-9P9V-PQJX
Vulnerability from github – Published: 2024-09-10 18:30 – Updated: 2024-09-10 18:30Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-43467"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-10T17:15:34Z",
"severity": "HIGH"
},
"details": "Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability",
"id": "GHSA-g5r8-9p9v-pqjx",
"modified": "2024-09-10T18:30:47Z",
"published": "2024-09-10T18:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43467"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43467"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G65H-Q52V-Q3XV
Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2022-05-24 17:22When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
{
"affected": [],
"aliases": [
"CVE-2020-12420"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-09T15:15:00Z",
"severity": "HIGH"
},
"details": "When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR \u003c 68.10, Firefox \u003c 78, and Thunderbird \u003c 68.10.0.",
"id": "GHSA-g65h-q52v-q3xv",
"modified": "2022-05-24T17:22:40Z",
"published": "2022-05-24T17:22:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12420"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1643437"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-09"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-10"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4421-1"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-24"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-25"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-26"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html"
}
],
"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-G66J-Q99M-Q5F6
Vulnerability from github – Published: 2026-09-08 18:32 – Updated: 2026-09-08 18:32Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-69404"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:19:02Z",
"severity": "HIGH"
},
"details": "Concurrent execution using shared resource with improper synchronization (\u0027race condition\u0027) in Windows TCP/IP allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-g66j-q99m-q5f6",
"modified": "2026-09-08T18:32:30Z",
"published": "2026-09-08T18:32:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69404"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69404"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-G6CP-4PC8-6JFR
Vulnerability from github – Published: 2022-05-01 18:30 – Updated: 2022-05-01 18:30Race condition in the kernel in Sun Solaris 8 through 10 allows local users to cause a denial of service (panic) via unspecified vectors related to "the handling of thread contexts."
{
"affected": [],
"aliases": [
"CVE-2007-5132"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2007-09-27T19:17:00Z",
"severity": "MODERATE"
},
"details": "Race condition in the kernel in Sun Solaris 8 through 10 allows local users to cause a denial of service (panic) via unspecified vectors related to \"the handling of thread contexts.\"",
"id": "GHSA-g6cp-4pc8-6jfr",
"modified": "2022-05-01T18:30:27Z",
"published": "2022-05-01T18:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-5132"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36793"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2214"
},
{
"type": "WEB",
"url": "http://osvdb.org/37712"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/26950"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/27059"
},
{
"type": "WEB",
"url": "http://sunsolve.sun.com/search/document.do?assetkey=1-26-103084-1"
},
{
"type": "WEB",
"url": "http://support.avaya.com/elmodocs2/security/ASA-2007-403.htm"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/25821"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1018744"
},
{
"type": "WEB",
"url": "http://www.vupen.com/english/advisories/2007/3274"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.