A data race could occur in the <code>PK11_ChangePW</code> function, potentially leading to a use-after-free vulnerability.

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• mozilla firefox esrbefore 102.2
• mozilla thunderbirdbefore 102.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (mozilla). Independent of NVD's CPE analysis and usually ahead of it.

• Mozilla Firefox ESR

  • unspecified and later · before 102.2affected

• Mozilla Thunderbird

  • unspecified and later · before 102.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2021-4127An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited.
  39Monitor
• CVE-2023-6862A use-after-free was identified in the `nsDNSService::Init`.
  35Monitor
• CVE-2023-25746Memory safety bugs present in Firefox ESR 102.7.
  35Monitor
• CVE-2021-38495Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0.
  35Monitor
• CVE-2020-15669When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified.
  35Monitor
• CVE-2020-6828A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file
  30Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.