The grapheme_stripos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-4540 from the MITRE CVE dictionary dictionary and NIST NVD.
Base Score | 4.3 |
---|---|
Base Metrics | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Access Vector | Network |
Access Complexity | Medium |
Authentication | None |
Confidentiality Impact | None |
Integrity Impact | None |
Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Platform | Errata | Release Date |
---|---|---|
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-php56-php) | RHSA-2016:2750 | 2016-11-15 |
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-php56-php) | RHSA-2016:2750 | 2016-11-15 |
Platform | Package | State |
---|---|---|
Red Hat Software Collections for Red Hat Enterprise Linux | php55-php | Will not fix |
Red Hat Software Collections for Red Hat Enterprise Linux | php54-php | Will not fix |
Red Hat Enterprise Linux 7 | php | Will not fix |
Red Hat Enterprise Linux 6 | php | Will not fix |
Red Hat Enterprise Linux 5 | php53 | Will not fix |
Red Hat Enterprise Linux 5 | php | Not affected |