Out-of-bounds Read in PHP
CVE-2016-5093
The get_icu_value_internal function in ext/intl/locale/locale_methods.c in PHP before 5.5.36, 5.6.x before 5.6.22, and 7.x before 7.0.7 does not ensure the presence of a '\0' character, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted locale_get_primary_language call.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.
EPSS exploit prediction
EPSS: 0.053 (92.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.055 · newest: 0.053 · change: -0.001
Affected products
- PHP — versions 5.6.0, 5.6.1, 5.6.2
Weakness classification (CWE)
References
- github.com/php/php-src/commit/97eff7eb57fc2320c267a949cffd622c38712484 (Patch)
- www.openwall.com/lists/oss-security/2016/05/26/3 (mailing-list, Release Notes)
- rhn.redhat.com/errata/RHSA-2016-2750.html (vendor-advisory)
- bugs.php.net/bug.php (Exploit)
- www.debian.org/security/2016/dsa-3602 (vendor-advisory)
- php.net/ChangeLog-5.php (Patch, Release Notes)
- php.net/ChangeLog-7.php (Patch, Release Notes)
- www.securityfocus.com/bid/90946 (vdb-entry)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay
Frequently asked questions
- What is CVE-2016-5093?
- CVE-2016-5093 is a high-severity vulnerability in PHP, classified under Out-of-bounds Read. CVSS score: 8.6/10. Published 2016-08-07.
- How severe is CVE-2016-5093?
- High severity. CVSS v3 base score is 8.6 out of 10.