CVE-2009-4142
The MITRE CVE dictionary describes this issue as:
The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character.
Find out more about CVE-2009-4142 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v2 metrics
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:N/I:P/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 5 (php) | RHSA-2010:0040 | 2010-01-13 |
| Red Hat Enterprise Linux 3 (php) | RHSA-2010:0040 | 2010-01-13 |
| Red Hat Enterprise Linux 4 (php) | RHSA-2010:0040 | 2010-01-13 |
CVE description copyright © 2017, The MITRE Corporation