CVE-2016-9933

Description

Stack consumption vulnerability in the gdImageFillToBorder function in gd.c in the GD Graphics Library (aka libgd) before 2.2.2, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (segmentation violation) via a crafted imagefilltoborder call that triggers use of a negative color value.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 4.50% Top 15%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory php.net Vendor Advisory php.net Vendor Advisory php.net Vendor Advisory github.com Vendor Advisory github.com Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2016/12/12/2 third party advisory mailing list
http://lists.opensuse.org/opensuse-updates/2016-12/msg00133.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00054.html vendor advisory
http://www.php.net/ChangeLog-7.php release notes vendor advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00002.html vendor advisory
https://github.com/php/php-src/commit/863d37ea66d5c960db08d6f4a2cbd2518f0f80d1 vendor advisory
http://www.debian.org/security/2017/dsa-3751 vendor advisory
http://www.securityfocus.com/bid/94865 vdb entry
https://access.redhat.com/errata/RHSA-2018:1296 vendor advisory
http://www.php.net/ChangeLog-5.php release notes vendor advisory
https://bugs.php.net/bug.php?id=72696 vendor advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00142.html vendor advisory
https://github.com/libgd/libgd/issues/215 vendor advisory
https://github.com/libgd/libgd/commit/77f619d48259383628c3ec4654b1ad578e9eb40e patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-9933?
CVE-2016-9933 has been scored as a high severity vulnerability.
How to fix CVE-2016-9933?
To fix CVE-2016-9933, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9933 being actively exploited in the wild?
It is possible that CVE-2016-9933 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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