Vulnerability Name:

CVE-2018-7456

Assigned:2018-02-22
Published:2018-02-22
Updated:2018-07-03
Summary:A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in tif_print.c in LibTIFF 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 v3 Severity:6.5 Medium (CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
6.0 Medium (Temporal CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
3.3 Low (CCN CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
3.1 Low (CCN Temporal CVSS v3 Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-476
References:Source: MISC
Type: UNKNOWN
http://bugzilla.maptools.org/show_bug.cgi?id=2778

Source: XF
Type: UNKNOWN
libtiff-cve20187456-dos(139536)

Source: MISC
Type: VENDOR_ADVISORY
https://github.com/xiaoqx/pocs/tree/master/libtiff

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20180416 [SECURITY] [DLA 1346-1] tiff security update

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20180416 [SECURITY] [DLA 1347-1] tiff3 security update

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20180702 [SECURITY] [DLA 1411-1] tiff security update

Vulnerable Configuration:Configuration 1:
  • cpe:/a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*

  • Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20187456
    V
    CVE-2018-7456
    2018-07-19
    oval:com.ubuntu.artful:def:20187456000
    V
    CVE-2018-7456 on Ubuntu 17.10 (artful) - negligible.
    2018-02-24
    oval:com.ubuntu.trusty:def:20187456000
    V
    CVE-2018-7456 on Ubuntu 14.04 LTS (trusty) - negligible.
    2018-02-24
    oval:com.ubuntu.xenial:def:20187456000
    V
    CVE-2018-7456 on Ubuntu 16.04 LTS (xenial) - negligible.
    2018-02-24
    BACK
    libtiff libtiff 4.0.9
    libtiff libtiff 4.0.9