CVE-2019-11048

Summary

In PHP versions 7.2.x below 7.2.31, 7.3.x below 7.3.18 and 7.4.x below 7.4.6, when HTTP file uploads are allowed, supplying overly long filenames or field names could lead PHP engine to try to allocate oversized memory storage, hit the memory limit and stop processing the request, without cleaning up temporary files created by upload request. This potentially could lead to accumulation of uncleaned temporary files exhausting the disk space on the target server.

Affected Software

VendorProductVersion RangeStatus
PHP GroupPHP7.3.x < 7.3.18affected
PHP GroupPHP7.4.x < 7.4.6affected
PHP GroupPHP7.2.x < 7.2.31affected

Weaknesses

  • CWE-400: CWE-400 Uncontrolled Resource Consumption
  • CWE-190: CWE-190 Integer Overflow or Wraparound

Workarounds

Setting post_max_size to value significantly lower than the memory limit prevents this issue from being exploited. Disabling file uploads also prevents this issue from happening.

ADP Enrichment

CVE Program Container

Additional References

References