Common Weakness Enumeration

CWE-362

Allowed-with-Review

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Abstraction: Class · Status: Draft

API response cwe.mitre.org

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.

2907 vulnerabilities reference this CWE, most recent first.

CVE-2022-2590 (GCVE-0-2022-2590)

Vulnerability from cvelistv5 – Published: 2022-08-31 15:32 – Updated: 2024-08-03 00:39
VLAI
Summary
A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel Affected: Linux kernel 5.16 onwards
Show details on NVD website
To clipboard 

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CVE-2022-1462 (GCVE-0-2022-1462)

Vulnerability from cvelistv5 – Published: 2022-05-31 00:00 – Updated: 2024-08-03 00:03
VLAI
Summary
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: no information yet
Show details on NVD website
To clipboard 

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CVE-2022-1247 (GCVE-0-2022-1247)

Vulnerability from cvelistv5 – Published: 2022-08-31 15:32 – Updated: 2024-08-02 23:55
VLAI
Summary
An issue found in linux-kernel that leads to a race condition in rose_connect(). The rose driver uses rose_neigh->use to represent how many objects are using the rose_neigh. When a user wants to delete a rose_route via rose_ioctl(), the rose driver calls rose_del_node() and removes neighbours only if their “count” and “use” are zero.
Severity
No CVSS data available.
CWE
  • CWE-362 - - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Not-Known
Show details on NVD website
To clipboard 

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CVE-2022-1195 (GCVE-0-2022-1195)

Vulnerability from cvelistv5 – Published: 2022-04-29 15:40 – Updated: 2024-08-02 23:55
VLAI
Summary
A use-after-free vulnerability was found in the Linux kernel in drivers/net/hamradio. This flaw allows a local attacker with a user privilege to cause a denial of service (DOS) when the mkiss or sixpack device is detached and reclaim resources early.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a kernel Affected: kernel 5.16 rc1
Show details on NVD website
To clipboard 

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CVE-2022-0279 (GCVE-0-2022-0279)

Vulnerability from cvelistv5 – Published: 2022-02-21 10:46 – Updated: 2024-08-02 23:25
VLAI
Title
AnyComment < 0.2.18 - Comment Rating Increase/Decrease via Race Condition
Summary
The AnyComment WordPress plugin before 0.2.18 is affected by a race condition when liking/disliking a comment/reply, which could allow any authenticated user to quickly raise their rating or lower the rating of other users
Severity
No CVSS data available.
CWE
  • CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)
Assigner
References
Impacted products
Vendor Product Version
Unknown AnyComment Affected: 0.2.18 , < 0.2.18 (custom)
Create a notification for this product.
Credits
Brandon Roldan
Show details on NVD website
To clipboard 

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CVE-2022-0207 (GCVE-0-2022-0207)

Vulnerability from cvelistv5 – Published: 2022-08-26 17:25 – Updated: 2024-08-02 23:18
VLAI
Summary
A race condition was found in vdsm. Functionality to obfuscate sensitive values in log files that may lead to values being stored in clear text.
Severity
No CVSS data available.
CWE
  • CWE-362 - - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
n/a vdsm Affected: Fixed in v4.50.0.4
Show details on NVD website
To clipboard 

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CVE-2021-44731 (GCVE-0-2021-44731)

Vulnerability from cvelistv5 – Published: 2022-02-17 00:00 – Updated: 2024-08-04 04:32
VLAI
Title
snapd could be made to escalate privileges and run programs as administrator
Summary
A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-362 - Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)
Assigner
References
Impacted products
Vendor Product Version
Canonical Ltd. snapd Affected: unspecified , ≤ 2.54.2 (custom)
Create a notification for this product.
Credits
Qualys Research Team
Show details on NVD website
To clipboard 

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CVE-2021-43980 (GCVE-0-2021-43980)

Vulnerability from cvelistv5 – Published: 2022-09-28 00:00 – Updated: 2025-05-21 15:00
VLAI
Title
Apache Tomcat: Information disclosure
Summary
The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 10.1.0-M1 to 10.1.0-M12
Affected: 10.0.0-M1 to 10.0.18
Affected: 9.0.0-M1 to 9.0.60
Affected: 8.5.0 to 8.5.77
Create a notification for this product.
Credits
Thanks to Adam Thomas, Richard Hernandez and Ryan Schmitt for discovering the issue and working with the Tomcat security team to identify the root cause and appropriate fix.
Show details on NVD website
To clipboard 

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CVE-2021-32810 (GCVE-0-2021-32810)

Vulnerability from cvelistv5 – Published: 2021-08-02 18:35 – Updated: 2024-08-03 23:33
VLAI
Title
Data race in crossbeam-deque
Summary
crossbeam-deque is a package of work-stealing deques for building task schedulers when programming in Rust. In versions prior to 0.7.4 and 0.8.0, the result of the race condition is that one or more tasks in the worker queue can be popped twice instead of other tasks that are forgotten and never popped. If tasks are allocated on the heap, this can cause double free and a memory leak. If not, this still can cause a logical bug. Crates using `Stealer::steal`, `Stealer::steal_batch`, or `Stealer::steal_batch_and_pop` are affected by this issue. This has been fixed in crossbeam-deque 0.8.1 and 0.7.4.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
URL Tags
https://github.com/crossbeam-rs/crossbeam/securit… x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
Impacted products
Vendor Product Version
crossbeam-rs crossbeam Affected: < 0.7.4
Affected: >= 0.8.0, < 0.8.1
Create a notification for this product.
Show details on NVD website
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              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CY5T3FCE4MUYSPKEWICLVJBBODGJ6SZE/"
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              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AWHNNBJCU4EHA2X5ZAMJMGLDUYS5FEPP/"
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              "refsource": "FEDORA",
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            {
              "name": "FEDORA-2021-9dc0bd0072",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQDIBB7VR3ER52FMSMNJPAWNDO5SITCE/"
            },
            {
              "name": "FEDORA-2021-0f82e9d6d5",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OCLMH7B7B2MF55ET4NQNPH7JWISFX4RT/"
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            {
              "name": "FEDORA-2021-e5ec6d55bf",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AYBSLIYFANZLCYWOGTIYZUM26TJRH7WU/"
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          ]
        },
        "source": {
          "advisory": "GHSA-pqqp-xmhj-wgcw",
          "discovery": "UNKNOWN"
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    }
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-32810",
    "datePublished": "2021-08-02T18:35:12.000Z",
    "dateReserved": "2021-05-12T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:33:56.077Z",
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CVE-2021-32686 (GCVE-0-2021-32686)

Vulnerability from cvelistv5 – Published: 2021-07-23 00:00 – Updated: 2025-11-04 16:09
VLAI
Title
Denial of Service in PJSIP
Summary
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
pjsip pjproject Affected: < 2.11.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design

In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.

Mitigation
Architecture and Design

Use thread-safe capabilities such as the data access abstraction in Spring.

Mitigation
Architecture and Design
  • 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
Implementation

When using multithreading and operating on shared variables, only use thread-safe functions.

Mitigation
Implementation

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
Implementation

Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.

Mitigation
Implementation

Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.

Mitigation
Implementation

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
Implementation

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
Architecture and Design Operation

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.

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