THREATPORT/VULNERABILITY/CVE-2015-4644
HIGH SEVERITY

CVE-2015-4644

Enterprise Linux vulnerability

CVSS
7.5
EPSS
6.4%
EPSS pct
93th
Exploited
No known
The php_pgsql_meta_data function in pgsql.c in the PostgreSQL (aka pgsql) extension in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 does not validate token extraction for table names, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted name. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1352.
Affected vendor
Redhat
Affected product
Enterprise Linux
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2016-05-16

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 6.4% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2015-4644

  • Confirm whether Redhat Enterprise Linux is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-4644.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-4644

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-4644 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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