Use After Free in PHP
CVE-2016-4473
/ext/phar/phar_object.c in PHP 7.0.7 and 5.6.x allows remote attackers to execute arbitrary code. NOTE: Introduced as part of an incomplete fix to CVE-2015-6833.
Vulnerability class: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.078 (94.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.078 · newest: 0.078 · change: 0.000
Affected products
- PHP — versions 5.6.0, 5.6.1, 5.6.2
- SUSE Linux Enterprise Module For Web Scripting — versions 12
- SUSE Linux Enterprise Software Development Kit — versions 12
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00007.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-2750.html (vendor-advisory, VDB Entry, Third Party Advisory)
- www.securityfocus.com/bid/98999 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, VDB Entry, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2016-4473?
- CVE-2016-4473 is a critical-severity vulnerability in PHP, classified under Use After Free. CVSS score: 9.8/10. Published 2017-06-08.
- How severe is CVE-2016-4473?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-4473 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.