CVE-2016-8670
CRITICAL severity · CVSS 9.8 · Memory corruption
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)5%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.php.net/ChangeLog-5.phpAdvisory
- http://www.php.net/ChangeLog-7.phpAdvisory
- https://bugs.php.net/bug.php?id=73280Advisory
- https://github.com/libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9Advisory
- http://www.debian.org/security/2016/dsa-3693
- http://www.openwall.com/lists/oss-security/2016/10/15/1Advisory
- http://www.securityfocus.com/bid/93594
- https://support.f5.com/csp/article/K21336065?utm_source=f5support&%3Butm_medium=RSS