CVE-2017-9935
In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 3.92% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- libtiff/libtiff · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
References
- http://bugzilla.maptools.org/show_bug.cgi?id=2704Exploit, Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/99296Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2017/12/msg00008.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3606-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4100Third Party Advisory
- http://bugzilla.maptools.org/show_bug.cgi?id=2704Exploit, Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/99296Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2017/12/msg00008.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3606-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4100Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.