CVE-2023-25739: Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in…

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

  • unspecified and later · before 110affected

• Mozilla Firefox ESR

  • unspecified and later · before 102.8affected

• Mozilla Thunderbird

  • unspecified and later · before 102.8affected

Affected versions

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

• mozilla firefoxbefore 110.0
• mozilla firefox esrbefore 102.8
• mozilla thunderbirdbefore 102.8

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-2010-3765Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x…KEV
  94Now
• CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the…KEV
  87Now
• CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to…KEV
  86Now

Published before and after this one in the same product

• ← EarlierCVE-2023-25737Jun 2, 2023 · An invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behavior.
  35Monitor
• ← EarlierCVE-2023-25738Jun 2, 2023 · Members of the <code>DEVMODEW</code> struct set by the printer device driver weren't being validated and could have resulted in invalid…
  26Monitor
• Later →CVE-2023-25742Jun 2, 2023 · When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab to crash.
  26Monitor

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.