CVE-2016-8670
9.8
CRITICAL · CVSS 3.0 · EPSS 4.7% (pctl 92)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.75% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-01-04 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| libgd | libgd |
| php | php |
References
- http://www.debian.org/security/2016/dsa-3693
- http://www.openwall.com/lists/oss-security/2016/10/15/1
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/93594
- https://bugs.php.net/bug.php?id=73280
- https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9
- https://support.f5.com/csp/article/K21336065?utm_source=f5support&%3Butm_medium=RSS
- http://www.debian.org/security/2016/dsa-3693
- http://www.openwall.com/lists/oss-security/2016/10/15/1
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/ChangeLog-7.php
- http://www.securityfocus.com/bid/93594
- https://bugs.php.net/bug.php?id=73280
- https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9
- https://support.f5.com/csp/article/K21336065?utm_source=f5support&%3Butm_medium=RSS
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