NULL Pointer Dereference

Affecting libgd2 package, versions <2.1.0-5+deb8u14

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Overview

gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE
CVE-2018-14553
CWE
CWE-476
Snyk ID
SNYK-DEBIAN8-LIBGD2-548746
Disclosed
11 Feb, 2020
Published
13 Feb, 2020