OpenSUSE Linux update for gd

1) Heap-based buffer overflow

EUVDB-ID: #VU1003

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-7568

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated user to cause DoS conditions on the target system.
The weakness is due to integer overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd). By performing a specially crafted imagewebp and imagedestroy calls, attackers can trigger a heap-based buffer overflow that lets them induce denial of service or execute arbitrary code.
Successful exploitation of the vulnerability results in denial of service or arbitrary code execution on the vulnerable system.

Mitigation

Update the affected packages.

Vulnerable software versions

GD Graphics Library: 2.1.0-5+deb8u6 - 2.2.3-3

External links

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00044.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.