libtiff: NULL pointer dereference in tif_print.c:TIFFPrintDirectory() causes a denial of service
Published Feb 24, 2018
6.5
MEDIUMCVSS 3.0
EPSS 2.99%
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.)
Affected products
No data.
Configuration 2
- 7.0
- 8.0
- 9.0
Configuration 3
- 14.04
- 16.04
- 18.04
- 18.10
No data.
Red Hat Enterprise Linux 7
compat-libtiff3-0:3.9.4-12.el7
Fixed · RHSA-2019:2051
Red Hat Enterprise Linux 7
libtiff-0:4.0.3-32.el7
Fixed · RHSA-2019:2053
Red Hat Enterprise Linux 5
libtiff
Will not fix
Red Hat Enterprise Linux 6
libtiff
Will not fix
Red Hat Enterprise Linux 8
libtiff
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | compat-libtiff3-0:3.9.4-12.el7 | Fixed | RHSA-2019:2051 |
| Red Hat Enterprise Linux 7 | libtiff-0:4.0.3-32.el7 | Fixed | RHSA-2019:2053 |
| Red Hat Enterprise Linux 5 | libtiff | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | libtiff | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | libtiff | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.99% (0.02989) | 86.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.07% (0.03069) | 85.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.78% (0.00780) | 71.99th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.33% (0.00331) | 71.93th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.33% (0.00331) | 70.27th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.33% (0.00331) | 67.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.33% (0.00325) | 66.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.27% (0.02273) | 50.89th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.27% (0.02273) | 0.00th | v1 |
References (14)
- http://bugzilla.maptools.org/show_bug.cgi?id=2778 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2051 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2019:2053 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-7456 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1556708 Issue Tracking
- https://github.com/xiaoqx/pocs/tree/master/libtiff x_refsource_MISCExploitThird Party Advisory
- https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00010.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00011.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-7456
- https://usn.ubuntu.com/3864-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-7456
- https://www.debian.org/security/2018/dsa-4349 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.