CVE-2017-9935

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-06-26 · updated 2026-06-17
Weakness: CWE-125

Description

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 17.10
Debian Linux: 7.0, 8.0, 9.0
libtiff: through 4.0.8

References

http://bugzilla.maptools.org/show_bug.cgi?id=2704
http://www.securityfocus.com/bid/99296
https://lists.debian.org/debian-lts-announce/2017/12/msg00008.html
https://usn.ubuntu.com/3606-1/
https://www.debian.org/security/2018/dsa-4100
http://bugzilla.maptools.org/show_bug.cgi?id=2704
http://www.securityfocus.com/bid/99296
https://lists.debian.org/debian-lts-announce/2017/12/msg00008.html
https://usn.ubuntu.com/3606-1/
https://www.debian.org/security/2018/dsa-4100

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