OSV-2021-1759
Heap-use-after-free in zend_hash_reverse_apply
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42894
Crash type: Heap-use-after-free READ 4
Crash state:
zend_hash_reverse_apply
shutdown_destructors
zend_call_destructors
What each source reports
OSV No score
Heap-use-after-free in zend_hash_reverse_apply
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42894
Crash type: Heap-use-after-free READ 4
Crash state:
zend_hash_reverse_apply
shutdown_destructors
zend_call_destructors
- Record
OSV-2021-1759- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
phpOSS-Fuzz |
Listed versions, plus commit ranges php-8.1.2RC1php-8.1.3php-8.1.4RC1php-8.1.7RC1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2021-1759 is a vulnerability with no CVSS score yet in php, published December 25, 2021. No source lists public exploit code. A source reports a fix.