CVE-2018-17795 — The function t2p_write_pdf in tiff2pdf

The function t2p_write_pdf in tiff2pdf.c in LibTIFF 4.0.9 and earlier allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, a similar issue to CVE-2017-9935.

01What is this vulnerability?

The function t2p_write_pdf in tiff2pdf.c in LibTIFF 4.0.9 and earlier allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, a similar issue to CVE-2017-9935.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2018-09-30T20:00:00.000Z
• Last modified: 2024-08-05T10:54:10.689Z

09References

• bugzilla.maptools.org — http://bugzilla.maptools.org/show_bug.cgi?id=2816
• www.securityfocus.com — http://www.securityfocus.com/bid/105445
• github.com — https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-17795