CVE-2017-9935

moderate-risk
Published 2017-06-26

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.

Do I need to act?

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0.48% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (7)

Affected Vendors

Libtiff Debian Canonical

References (10)

Exploit http://bugzilla.maptools.org/show_bug.cgi?id=2704
Third Party Advisory http://www.securityfocus.com/bid/99296
Mailing List https://lists.debian.org/debian-lts-announce/2017/12/msg00008.html
Third Party Advisory https://usn.ubuntu.com/3606-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4100
Exploit http://bugzilla.maptools.org/show_bug.cgi?id=2704
Third Party Advisory http://www.securityfocus.com/bid/99296
Mailing List https://lists.debian.org/debian-lts-announce/2017/12/msg00008.html
Third Party Advisory https://usn.ubuntu.com/3606-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4100
46
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 2/34 · Minimal
Exposure 14/34 · Moderate