Buffer overflow in Php
CVE-2016-6296
Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.
Vulnerability class: Buffer Overflow
EPSS: 0.063 (92.8th 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)
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM)
- cve@mitre.org (vendor-advisory, x_refsource_APPLE)
- cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_REDHAT, vendor-advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Issue Tracking)
- cve@mitre.org (x_refsource_CONFIRM, Release Notes)
- cve@mitre.org (vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2016-6296?
- CVE-2016-6296 is a critical-severity vulnerability in Php, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2016-07-25.
- How severe is CVE-2016-6296?
- Critical severity. CVSS v3 base score is 9.8 out of 10.