CVE-2016-8670

Name: CVE-2016-8670
Creator: NVD / NIST
Published: 2017-01-04T20:59:00.293+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.75%

Last modified Jun 17, 2026

CVE-2016-8670 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.75% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

4.75%

90.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Libgd	Libgd	<= 2.2.3

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 Notes, Vendor Advisory
http://www.php.net/ChangeLog-7.phpRelease Notes, Vendor 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&amp%3Butm_medium=RSS
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 Notes, Vendor Advisory
http://www.php.net/ChangeLog-7.phpRelease Notes, Vendor 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&amp%3Butm_medium=RSS

Timeline

Published: Jan 4, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-8670?

How severe is CVE-2016-8670?

Severity scoring for CVE-2016-8670 is pending analysis. The EPSS model estimates a 4.75% probability of exploitation in the next 30 days.

How do I fix CVE-2016-8670?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-8670?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST