Out-of-bounds Read in Libtiff
CVE-2017-9117
In LibTIFF 4.0.6 and possibly other versions, the program processes BMP images without verifying that biWidth and biHeight in the bitmap-information header match the actual input, as demonstrated by a heap-based buffer over-read in bmp2tiff. NOTE: mentioning bmp2tiff does not imply that the activation point is in the bmp2tiff.c file (which was removed before the 4.0.7 release).
Vulnerability class: Buffer Overflow
EPSS: 0.022 (80.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Libtiff — versions 4.0.7, 4.0.6
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry)
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
- cve@mitre.org
Frequently asked questions
- What is CVE-2017-9117?
- CVE-2017-9117 is a medium-severity vulnerability in Libtiff, classified under Out-of-bounds Read. CVSS score: 4.0/10. Published 2017-05-21.
- How severe is CVE-2017-9117?
- Medium severity. CVSS v3 base score is 4.0 out of 10.
- Is CVE-2017-9117 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.