A use-after-free vulnerability during XSLT processing due to the result handler being held by a freed handler during handling.

Affected versions

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

• debian debian linux9.0
• mozilla firefoxbefore 45.9.0
• mozilla firefoxbefore 53.0
• mozilla firefox52.0
• mozilla thunderbirdbefore 52.1.0
• redhat enterprise linux6.0
• redhat enterprise linux7.0
• redhat enterprise linux desktop6.0
• redhat enterprise linux desktop7.0
• redhat enterprise linux server6.0
• redhat enterprise linux server7.0
• redhat enterprise linux server aus7.3
• redhat enterprise linux server aus7.4
• redhat enterprise linux server eus7.3
• redhat enterprise linux server eus7.4
• redhat enterprise linux server eus7.5
• redhat enterprise linux workstation6.0
• redhat enterprise linux workstation7.0

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 53affected

• Mozilla Firefox ESR

  • unspecified and later · before 45.9affected
  • unspecified and later · before 52.1affected

• Mozilla Thunderbird

  • unspecified and later · before 52.1affected

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-2016-9079A use-after-free vulnerability in SVG Animation has been discovered.KEV
  86Now
• CVE-2024-44308The issue was addressed with improved checks.KEV
  68This week
• CVE-2021-25216A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack
  64This week
• CVE-2024-44309A cookie management issue was addressed with improved state management.KEV
  62This week
• CVE-2016-2098Action Pack in Ruby on Rails before 3.2.22.2, 4.x before 4.1.14.2, and 4.2.x before 4.2.5.2 allows remote attackers to execute arbitrary Rub
  53Plan
• CVE-2015-1592Movable Type Pro, Open Source, and Advanced before 5.2.12 and Pro and Advanced 6.0.x before 6.0.7 does not properly use the Perl Storable::t
  53Plan

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.