CVE-2018-7456
A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in tif_print.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 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…
Does this matter?
Lower severity and a low EPSS score (2.99%). Track it; it rarely justifies an emergency change on its own.
Description
A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in tif_print.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 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 when using the tiffinfo tool to print crafted TIFF information, a different vulnerability than CVE-2017-18013. (This affects an earlier part of the TIFFPrintDirectory function that was not addressed by the CVE-2017-18013 patch.)
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 2.99% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- libtiff/libtiff · debian/debian linux · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 3.0% 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=2778Exploit, Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2051
- https://access.redhat.com/errata/RHSA-2019:2053
- https://github.com/xiaoqx/pocs/tree/master/libtiffExploit, Third Party Advisory
- https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731bPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00010.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00002.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3864-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4349Third Party Advisory
- http://bugzilla.maptools.org/show_bug.cgi?id=2778Exploit, Issue Tracking, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2051
- https://access.redhat.com/errata/RHSA-2019:2053
- https://github.com/xiaoqx/pocs/tree/master/libtiffExploit, Third Party Advisory
- https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731bPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00010.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00011.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00002.htmlMailing List, Third Party Advisory
- https://usn.ubuntu.com/3864-1/Third Party Advisory
- 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.