THREATPORT/VULNERABILITY/CVE-2018-14553
HIGH SEVERITY

CVE-2018-14553

Libgd vulnerability

CVSS
7.5
EPSS
3.4%
EPSS pct
88th
Exploited
No known
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).
Affected vendor
Libgd
Affected product
Libgd
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-476 — NULL Pointer Dereference
Published
2020-02-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2018-14553

  • Confirm whether Libgd Libgd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-14553.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-14553

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-14553 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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