CWE-667

Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

CVE-2019-14898 (GCVE-0-2019-14898)
Vulnerability from cvelistv5
Published
2020-05-08 13:50
Modified
2024-08-05 00:26
Severity ?
7.0 (High) - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Summary
The fix for CVE-2019-11599, affecting the Linux kernel before 5.0.10 was not complete. A local user could use this flaw to obtain sensitive information, cause a denial of service, or possibly have other unspecified impacts by triggering a race condition with mmget_not_zero or get_task_mm calls.
References
Impacted products
Vendor Product Version
Linux kernel kernel Version: < 5.0.10
 Create a notification for this product.
Show details on NVD website

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CVE-2019-3901 (GCVE-0-2019-3901)
Vulnerability from cvelistv5
Published
2019-04-22 15:22
Modified
2024-08-04 19:26
Severity ?
5.6 (Medium) - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
Summary
A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.
References
Impacted products
Vendor Product Version
The Linux Foundation kernel Version: older then 4.8
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2021-20291 (GCVE-0-2021-20291)
Vulnerability from cvelistv5
Published
2021-04-01 17:49
Modified
2024-08-03 17:37
Severity ?
CWE
Summary
A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).
References
Impacted products
Vendor Product Version
n/a containers/storage Version: containers/storage 1.28.1
Show details on NVD website

To clipboard 

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CVE-2021-20315 (GCVE-0-2021-20315)
Vulnerability from cvelistv5
Published
2022-02-18 00:00
Modified
2024-08-03 17:37
Severity ?
CWE
Summary
A locking protection bypass flaw was found in some versions of gnome-shell as shipped within CentOS Stream 8, when the "Application menu" or "Window list" GNOME extensions are enabled. This flaw allows a physical attacker who has access to a locked system to kill existing applications and start new ones as the locked user, even if the session is still locked.
References
Impacted products
Vendor Product Version
n/a gnome-shell Version: gnome-shell 3.32.2-40.el8
Show details on NVD website

To clipboard 

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CVE-2021-22530 (GCVE-0-2021-22530)
Vulnerability from cvelistv5
Published
2024-08-28 06:29
Modified
2024-08-28 13:31
Severity ?
8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
CWE
Summary
A vulnerability identified in NetIQ Advance Authentication that doesn't enforce account lockout when brute force attack is performed on API based login. This issue may lead to user account compromise if successful or may impact server performance. This issue impacts all NetIQ Advance Authentication before 6.3.5.1
References
Impacted products
Vendor Product Version
OpenText NetIQ Advance Authentication Version: 6.3.5.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2021-3667 (GCVE-0-2021-3667)
Vulnerability from cvelistv5
Published
2022-03-02 00:00
Modified
2025-02-13 16:28
Severity ?
CWE
Summary
An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.
References
Impacted products
Vendor Product Version
n/a libvirt Version: Fixedin - libvert v7.6.0-rc1 and above
Show details on NVD website

To clipboard 

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CVE-2021-3735 (GCVE-0-2021-3735)
Vulnerability from cvelistv5
Published
2022-08-26 15:25
Modified
2025-02-28 13:07
Severity ?
CWE
  • CWE-667 - - Improper Locking -> CWE-400 - Uncontrolled Resource Consumption
Summary
A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.
References
Impacted products
Vendor Product Version
n/a QEMU Version: Not Known
Show details on NVD website

To clipboard 

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CVE-2021-41141 (GCVE-0-2021-41141)
Vulnerability from cvelistv5
Published
2022-01-04 00:00
Modified
2025-04-23 19:15
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Summary
PJSIP is a free and open source multimedia communication library written in the C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In various parts of PJSIP, when error/failure occurs, it is found that the function returns without releasing the currently held locks. This could result in a system deadlock, which cause a denial of service for the users. No release has yet been made which contains the linked fix commit. All versions up to an including 2.11.1 are affected. Users may need to manually apply the patch.
References
Impacted products
Vendor Product Version
pjsip pjproject Version: <= 2.11.1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2021-41213 (GCVE-0-2021-41213)
Vulnerability from cvelistv5
Published
2021-11-05 22:10
Modified
2024-08-04 03:08
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Summary
TensorFlow is an open source platform for machine learning. In affected versions the code behind `tf.function` API can be made to deadlock when two `tf.function` decorated Python functions are mutually recursive. This occurs due to using a non-reentrant `Lock` Python object. Loading any model which contains mutually recursive functions is vulnerable. An attacker can cause denial of service by causing users to load such models and calling a recursive `tf.function`, although this is not a frequent scenario. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
References
Impacted products
Vendor Product Version
tensorflow tensorflow Version: >= 2.6.0, < 2.6.1
Version: >= 2.5.0, < 2.5.2
Version: < 2.4.4
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2021-4147 (GCVE-0-2021-4147)
Vulnerability from cvelistv5
Published
2022-03-25 00:00
Modified
2024-08-03 17:16
Severity ?
CWE
Summary
A flaw was found in the libvirt libxl driver. A malicious guest could continuously reboot itself and cause libvirtd on the host to deadlock or crash, resulting in a denial of service condition.
References
Impacted products
Vendor Product Version
n/a libvirt Version: libvirt 2.33.0
Show details on NVD website

To clipboard 

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Mitigation

Phase: Implementation

Strategy: Libraries or Frameworks

Description:

  • Use industry standard APIs to implement locking mechanism.
CAPEC-25: Forced Deadlock

The adversary triggers and exploits a deadlock condition in the target software to cause a denial of service. A deadlock can occur when two or more competing actions are waiting for each other to finish, and thus neither ever does. Deadlock conditions can be difficult to detect.

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-27: Leveraging Race Conditions via Symbolic Links

This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.

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