Vulnerability Description
Integer signedness error in the dynamicGetbuf function in gd_io_dp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted imagecreatefromstring call.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libgd | Libgd | <= 2.2.3 |
| Php | Php | <= 5.6.27 |
Related Weaknesses (CWE)
References
- http://www.debian.org/security/2016/dsa-3693
- http://www.openwall.com/lists/oss-security/2016/10/15/1Third Party Advisory
- http://www.php.net/ChangeLog-5.phpRelease NotesVendor Advisory
- http://www.php.net/ChangeLog-7.phpRelease NotesVendor Advisory
- http://www.securityfocus.com/bid/93594
- https://bugs.php.net/bug.php?id=73280Vendor Advisory
- https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9Vendor Advisory
- https://support.f5.com/csp/article/K21336065?utm_source=f5support&%3Butm_medi
- http://www.debian.org/security/2016/dsa-3693
- http://www.openwall.com/lists/oss-security/2016/10/15/1Third Party Advisory
- http://www.php.net/ChangeLog-5.phpRelease NotesVendor Advisory
- http://www.php.net/ChangeLog-7.phpRelease NotesVendor Advisory
- http://www.securityfocus.com/bid/93594
- https://bugs.php.net/bug.php?id=73280Vendor Advisory
- https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9Vendor Advisory
FAQ
What is CVE-2016-8670?
CVE-2016-8670 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Integer signedness error in the dynamicGetbuf function in gd_io_dp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers t...
How severe is CVE-2016-8670?
CVE-2016-8670 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2016-8670?
Check the references section above for vendor advisories and patch information. Affected products include: Libgd Libgd, Php Php.