CVE-2016-8670

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.

• CWE-119

• http://www.debian.org/security/2016/dsa-3693
• http://www.openwall.com/lists/oss-security/2016/10/15/1Third Party Advisory
• http://www.php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
• http://www.php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
• http://www.securityfocus.com/bid/93594
• https://bugs.php.net/bug.php?id=73280Vendor Advisory
• https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9Vendor Advisory
• https://support.f5.com/csp/article/K21336065?utm_source=f5support&amp%3Butm_medium=RSS
• http://www.debian.org/security/2016/dsa-3693
• http://www.openwall.com/lists/oss-security/2016/10/15/1Third Party Advisory
• http://www.php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
• http://www.php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
• http://www.securityfocus.com/bid/93594
• https://bugs.php.net/bug.php?id=73280Vendor Advisory
• https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9Vendor Advisory
• https://support.f5.com/csp/article/K21336065?utm_source=f5support&amp%3Butm_medium=RSS

Published

Jan 4, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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