CVE-2018-17101
There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in LibTIFF 4.0.9. There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file.
- 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
- 3.14% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- debian/debian linux · libtiff/libtiff · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://bugzilla.maptools.org/show_bug.cgi?id=2807Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/105370Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2053
- https://gitlab.com/libtiff/libtiff/merge_requests/33/diffs?commit_id=f1b94e8a3ba49febdd3361c0214a1d1149251577Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00019.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3864-1/Third Party Advisory
- https://usn.ubuntu.com/3906-2/
- https://www.debian.org/security/2018/dsa-4349Third Party Advisory
- http://bugzilla.maptools.org/show_bug.cgi?id=2807Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/105370Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:2053
- https://gitlab.com/libtiff/libtiff/merge_requests/33/diffs?commit_id=f1b94e8a3ba49febdd3361c0214a1d1149251577Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00019.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3864-1/Third Party Advisory
- https://usn.ubuntu.com/3906-2/
- https://www.debian.org/security/2018/dsa-4349Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.