#VU33181 Heap-based buffer overflow in GraphicsMagick - CVE-2016-7800

Vulnerability identifier: #VU33181

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-7800

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GraphicsMagick
Universal components / Libraries / Libraries used by multiple products

Vendor: GraphicsMagick Group

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Integer underflow in the parse8BIM function in coders/meta.c in GraphicsMagick 1.3.25 and earlier. A remote attacker can use a crafted 8BIM chunk to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 1.3.26.

Vulnerable software versions

GraphicsMagick: 1.3.8 - 1.3.25

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External links
https://lists.opensuse.org/opensuse-updates/2016-10/msg00094.html
https://lists.opensuse.org/opensuse-updates/2016-10/msg00097.html
https://www.debian.org/security/2016/dsa-3746
https://www.openwall.com/lists/oss-security/2016/10/01/7
https://www.securityfocus.com/bid/93262
https://www.securityfocus.com/bid/96135
https://bugzilla.redhat.com/show_bug.cgi?id=1381148
https://sourceforge.net/p/graphicsmagick/code/ci/5c7b6d6094a25e99c57f8b18343914ebfd8213ef/

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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.