CVE-2019-6977 EXPLOIT
8.8
HIGH · CVSS 3.0 · EPSS 71.5% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 71.5% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-01-27 |
| Last modified | 2026-06-17 |
Affected (5)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| libgd | libgd |
| netapp | storage automation store |
| php | php |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | PHP 7.2 - 'imagecolormatch()' Out of Band Heap Write | 2019-02-27 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00025.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00031.html
- http://packetstormsecurity.com/files/152459/PHP-7.2-imagecolormatch-Out-Of-Band-Heap-Write.html
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/106731
- https://access.redhat.com/errata/RHSA-2019:2519
- https://access.redhat.com/errata/RHSA-2019:3299
- https://bugs.php.net/bug.php?id=77270
- https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3WRUPZVT2MWFUEMVGTRAGDOBHLNMGK5R/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEYUUOW75YD3DENIPYMO263E6NL2NFHI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTXSLRZI5BCQT3H5KALG3DHUWUMNPDX2/
- https://security.gentoo.org/glsa/201903-18
- https://security.netapp.com/advisory/ntap-20190315-0003/
- https://usn.ubuntu.com/3900-1/
- https://www.debian.org/security/2019/dsa-4384
- https://www.exploit-db.com/exploits/46677/
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00025.html
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