Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
0

CVE-2017-7890

Disclosure Date: August 02, 2017 •
CVE-2017-7890 CVSS v3 Base Score: 6.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

The GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.31 and 7.x before 7.1.7, does not zero colorMap arrays before use. A specially crafted GIF image could use the uninitialized tables to read ~700 bytes from the top of the stack, potentially disclosing sensitive information.

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CVSS V3 Severity and Metrics
Base Score:
6.5 Medium
Impact Score:
3.6
Exploitability Score:
2.8
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • php

Products

  • php,
  • php 7.0.0,
  • php 7.0.1,
  • php 7.0.10,
  • php 7.0.11,
  • php 7.0.12,
  • php 7.0.13,
  • php 7.0.14,
  • php 7.0.15,
  • php 7.0.16,
  • php 7.0.17,
  • php 7.0.18,
  • php 7.0.19,
  • php 7.0.2,
  • php 7.0.20,
  • php 7.0.3,
  • php 7.0.4,
  • php 7.0.5,
  • php 7.0.6,
  • php 7.0.7,
  • php 7.0.8,
  • php 7.0.9,
  • php 7.1.0,
  • php 7.1.1,
  • php 7.1.2,
  • php 7.1.3,
  • php 7.1.4,
  • php 7.1.5,
  • php 7.1.6
Technical Analysis