Critical severity9.8NVD Advisory· Published Jul 25, 2016· Updated Jun 17, 2026
CVE-2016-6296
CVE-2016-6296
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
51cpe:2.3:a:php:php:*:*:*:*:*:*:*:*+ 40 more
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*range: <=5.5.37
- cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.17:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.21:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.22:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.23:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:*
- (no CPE)range: before 5.5.38 / 5.6.x before 5.6.24 / 7.x before 7.0.9
- Range: <=0.54.2
- osv-coords9 versionspkg:rpm/suse/php53&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP2-LTSSpkg:rpm/suse/php53&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/php53&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/php53&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/php5&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/php5&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP2-LTSSpkg:rpm/suse/php5&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/php7&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1
< 5.3.17-55.1+ 8 more
- (no CPE)range: < 5.3.17-55.1
- (no CPE)range: < 5.3.17-79.2
- (no CPE)range: < 5.3.17-79.2
- (no CPE)range: < 5.3.17-79.2
- (no CPE)range: < 5.5.14-73.1
- (no CPE)range: < 5.2.14-0.7.30.89.1
- (no CPE)range: < 5.5.14-73.1
- (no CPE)range: < 7.0.7-15.1
- (no CPE)range: < 7.0.7-15.1
Patches
Vulnerability mechanics
References
14- bugs.php.net/72606nvdExploitIssue Tracking
- www.securityfocus.com/bid/92095nvdThird Party AdvisoryVDB Entry
- openwall.com/lists/oss-security/2016/07/24/2nvdMailing List
- php.net/ChangeLog-5.phpnvdRelease Notes
- php.net/ChangeLog-7.phpnvdRelease Notes
- git.php.netnvd
- lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlnvd
- rhn.redhat.com/errata/RHSA-2016-2750.htmlnvd
- www.debian.org/security/2016/dsa-3631nvd
- www.securitytracker.com/id/1036430nvd
- www.ubuntu.com/usn/USN-3059-1nvd
- lists.debian.org/debian-lts-announce/2019/11/msg00029.htmlnvd
- security.gentoo.org/glsa/201611-22nvd
- support.apple.com/HT207170nvd
News mentions
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