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CVE
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CVE-2018-7456Date: (C)2018-02-26   (M)2024-02-22


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.5CVSS Score : 4.3
Exploit Score: 2.8Exploit Score: 8.6
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: MEDIUM
Privileges Required: NONEAuthentication: NONE
User Interaction: REQUIREDConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
DSA-4349
RHSA-2019:2051
RHSA-2019:2053
USN-3864-1
https://lists.debian.org/debian-lts-announce/2018/04/msg00010.html
https://lists.debian.org/debian-lts-announce/2018/04/msg00011.html
https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html
http://bugzilla.maptools.org/show_bug.cgi?id=2778
https://github.com/xiaoqx/pocs/tree/master/libtiff
https://gitlab.com/libtiff/libtiff/commit/be4c85b16e8801a16eec25e80eb9f3dd6a96731b

CPE    6
cpe:/o:debian:debian_linux:9.0
cpe:/o:debian:debian_linux:7.0
cpe:/o:debian:debian_linux:8.0
cpe:/o:canonical:ubuntu_linux:18.04::~~lts~~~
...
CWE    1
CWE-476
OVAL    21
oval:org.secpod.oval:def:114641
oval:org.secpod.oval:def:114303
oval:org.secpod.oval:def:89049728
oval:org.secpod.oval:def:603583
...

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