Out-of-bounds read in libgd

1) Out-of-bounds read

EUVDB-ID: #VU32248

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-6132

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The gdImageCreateFromTgaCtx function in the GD Graphics Library (aka libgd) before 2.2.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TGA file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libgd: 2.2.0 - 2.2.2

CPE2.3

• cpe:2.3:a:gd_software:libgd:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:gd_software:libgd:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:gd_software:libgd:2.2.2:*:*:*:*:*:*:*

External links

https://lists.opensuse.org/opensuse-updates/2016-08/msg00086.html
https://lists.opensuse.org/opensuse-updates/2016-09/msg00078.html
https://www.debian.org/security/2016/dsa-3619
https://www.openwall.com/lists/oss-security/2016/06/30/10
https://www.openwall.com/lists/oss-security/2016/06/30/6
https://www.securityfocus.com/bid/91520
https://www.ubuntu.com/usn/USN-3060-1
https://github.com/libgd/libgd/issues/247
https://libgd.github.io/release-2.2.3.html
https://security.gentoo.org/glsa/201612-09

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.