Use After Free in Php
CVE-2016-5773
php_zip.c in the zip extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and application crash) via crafted serialized data containing a ZipArchive object.
Vulnerability class: Use-After-Free
EPSS: 0.093 (94.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Php — versions 5.6.0, 5.6.1, 5.6.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory, x_refsource_APPLE)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Release Notes)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Release Notes)
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Release Notes)
- cve@mitre.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2016-5773?
- CVE-2016-5773 is a critical-severity vulnerability in Php, classified under Use After Free. CVSS score: 9.8/10. Published 2016-08-07.
- How severe is CVE-2016-5773?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-5773 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.