Integer underflow in the _gdContributionsAlloc function in gd_interpolation.c in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via vectors related to decrementing the u variable.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-10166 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 4.8 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | Low |
| Availability Impact | Low |
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-php70-php | Not affected |
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-php56-php | Not affected |
| Red Hat OpenShift Enterprise 2 | php | Not affected |
| Red Hat Enterprise Linux 7 | php | Not affected |
| Red Hat Enterprise Linux 7 | gd | Not affected |
| Red Hat Enterprise Linux 7 | libwmf | Not affected |
| Red Hat Enterprise Linux 6 | libwmf | Not affected |
| Red Hat Enterprise Linux 6 | gd | Not affected |
| Red Hat Enterprise Linux 6 | php | Not affected |
| Red Hat Enterprise Linux 5 | gd | Not affected |
| Red Hat Enterprise Linux 5 | php53 | Not affected |
| Red Hat Enterprise Linux 5 | libwmf | Not affected |
| Red Hat Enterprise Linux 5 | php | Not affected |
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