CVE-2019-6977

Public Exploit

Description

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.

Category

8.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 89.49% Top 5%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory php.net Vendor Advisory php.net Vendor Advisory php.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/106731 third party advisory vdb entry
https://security.netapp.com/advisory/ntap-20190315-0003/ third party advisory patch
http://php.net/ChangeLog-5.php release notes vendor advisory
http://php.net/ChangeLog-7.php release notes vendor advisory
https://usn.ubuntu.com/3900-1/ third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html third party advisory mailing list
https://bugs.php.net/bug.php?id=77270 mailing list exploit vendor advisory issue tracking
https://www.debian.org/security/2019/dsa-4384 third party advisory vendor advisory
https://security.gentoo.org/glsa/201903-18 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00025.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00031.html vendor advisory
https://www.exploit-db.com/exploits/46677/ exploit
http://packetstormsecurity.com/files/152459/PHP-7.2-imagecolormatch-Out-Of-Band-Heap-Write.html
https://access.redhat.com/errata/RHSA-2019:2519 vendor advisory
https://access.redhat.com/errata/RHSA-2019:3299 vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEYUUOW75YD3DENIPYMO263E6NL2NFHI/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3WRUPZVT2MWFUEMVGTRAGDOBHLNMGK5R/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTXSLRZI5BCQT3H5KALG3DHUWUMNPDX2/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-6977?
CVE-2019-6977 has been scored as a high severity vulnerability.
How to fix CVE-2019-6977?
To fix CVE-2019-6977, 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-2019-6977 being actively exploited in the wild?
It is possible that CVE-2019-6977 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~89% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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