Use After Free in PHP
CVE-2017-11143
In PHP before 5.6.31, an invalid free in the WDDX deserialization of boolean parameters could be used by attackers able to inject XML for deserialization to crash the PHP interpreter, related to an invalid free for an empty boolean element in ext/wddx/wddx.c.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.068 (93.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.068 · newest: 0.068 · change: 0.000
Affected products
Weakness classification (CWE)
References
- openwall.com/lists/oss-security/2017/07/10/6 (Patch, Mailing List, Third Party Advisory)
- www.tenable.com/security/tns-2017-12
- www.securityfocus.com/bid/99553 (vdb-entry)
- bugs.php.net/bug.php (Patch, Issue Tracking, Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:1296 (vendor-advisory)
- php.net/ChangeLog-5.php (Release Notes, Vendor Advisory)
- security.netapp.com/advisory/ntap-20180112-0001/
- www.debian.org/security/2018/dsa-4081 (vendor-advisory)
- git.php.net/
Frequently asked questions
- What is CVE-2017-11143?
- CVE-2017-11143 is a high-severity vulnerability in PHP, classified under Use After Free. CVSS score: 7.5/10. Published 2017-07-10.
- How severe is CVE-2017-11143?
- High severity. CVSS v3 base score is 7.5 out of 10.