#VU12656 Out-of-bounds write in LibTIFF - CVE-2016-9536

Vulnerability identifier: #VU12656

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-9536

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

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

Vendor: LibTIFF

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

The weakness exists in heap allocated buffers in t2p_process_jpeg_strip() in tools/tiff2pdf.c due to out-of-bounds write, aka "t2p_process_jpeg_strip heap-buffer-overflow." A remote attacker can execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LibTIFF: 4.0.6

---

External links
https://github.com/vadz/libtiff/commit/83a4b92815ea04969d494416eaae3d4c6b338e4a#diff-5173a9b3b48146e...

---

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.