Double Free in Php
CVE-2016-5768
Double free vulnerability in the _php_mb_regex_ereg_replace_exec function in php_mbregex.c in the mbstring extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by leveraging a callback exception.
Vulnerability class: Double Free
EPSS: 0.096 (95.0th 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 (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Release Notes)
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Release Notes)
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2016-5768?
- CVE-2016-5768 is a critical-severity vulnerability in Php, classified under Double Free. CVSS score: 9.8/10. Published 2016-08-07.
- How severe is CVE-2016-5768?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-5768 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.