CVE-2018-7456 Details

CVE-2018-7456

Published: 2018-02-24
Last Modified: 2021-01-29
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

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.)

Analysis
Common Vulnerability Score System v2.0
Severity Medium
Base Score 4.3/10
Exploit Score 8.6/10
Access Vector Network
Access Complexity Medium
Authentication None
Impact Score 2.9/10
Confidentiality Impact None
Availability Impact Partial
Integrity Impact None
Vector String AV:N/AC:M/Au:N/C:N/I:N/A:P
Common Vulnerability Score System v3.1
Severity Medium
Base Score 6.5/10
Exploit Score 2.8/10
Access Vector Network
Access Complexity Low
Privileges Required None
Impact Score 3.6/10
Confidentiality Impact None
Availability Impact High
Integrity Impact None
Scope Unchanged
User Interaction Required
Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Yes - -
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Yes - -
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Yes - -
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Yes - -
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Yes - -
References

https://github.com/xiaoqx/pocs/tree/master/libtiff
http://bugzilla.maptools.org/show_bug.cgi?id=2778
https://lists.debian.org/debian-lts-announce/2018/04/msg00011.html
https://lists.debian.org/debian-lts-announce/2018/04/msg00010.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html
https://www.debian.org/security/2018/dsa-4349
https://usn.ubuntu.com/3864-1/
https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b
https://access.redhat.com/errata/RHSA-2019:2051
https://access.redhat.com/errata/RHSA-2019:2053

CVE ID
CVE-2018-7456
Published
2018-02-24
Modified
2021-01-29
CVSSv2.0
Medium
CVSSv3.1
Medium
PCI Compliance
Pass
US-CERT Alert
No
CWE
CWE-476

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