CVE-2018-12900
Heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0beta7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 25.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
Heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0beta7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 allows remote attackers to cause a denial of service (crash) or possibly have unspecified other impact via a crafted TIFF 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
- 25.18% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- libtiff/libtiff · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS moved from 21.5% on 21 September 2026 to 25.2% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://bugzilla.maptools.org/show_bug.cgi?id=2798Exploit, Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2053
- https://access.redhat.com/errata/RHSA-2019:3419
- https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-12900
- https://lists.debian.org/debian-lts-announce/2019/11/msg00027.html
- https://usn.ubuntu.com/3906-1/Third Party Advisory
- https://usn.ubuntu.com/3906-2/
- https://www.debian.org/security/2020/dsa-4670
- http://bugzilla.maptools.org/show_bug.cgi?id=2798Exploit, Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2053
- https://access.redhat.com/errata/RHSA-2019:3419
- https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-12900
- https://lists.debian.org/debian-lts-announce/2019/11/msg00027.html
- https://usn.ubuntu.com/3906-1/Third Party Advisory
- https://usn.ubuntu.com/3906-2/
- https://www.debian.org/security/2020/dsa-4670
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.