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TI-2018-00457 Aliases CVE-2018-0500GHSA-rg4c-f6cj-x9w8

Out-of-bounds write in curl before 7.61.0

Priority MEDIUM 51CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).

Why it matters now

EPSS 0.06352 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—curl before 7.61.0curl before 7.61.0—No fix listedCNA
  • curl before 7.61.0 Vendor— Affected curl before 7.61.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*7.54.1 – 7.60.0VulnerableHaxx
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*17.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
  • cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* Versions 7.54.1 – 7.60.0 Vulnerable ·Haxx
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical

Remediation

Red Hat 1 advisory

  • RHSA-2018:2486 Released 2018-08-16 · Red Hat rating Important
    Red Hat JBoss Core Services Apache HTTP Server 2.4.29 security update
    • Red Hat JBoss Core Services

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat JBoss Core ServicesFixed RHSA-2018:2486
Not affected: 11 products
  • .NET Core 1.0 on Red Hat Enterprise Linux
  • .NET Core 1.1 on Red Hat Enterprise Linux
  • .NET Core 2.0 on Red Hat Enterprise Linux
  • .NET Core 2.1 on Red Hat Enterprise Linux
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat JBoss Core Services
  • Red Hat JBoss Web Server 3
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0500
  2. 2026-10-03 Alias added: GHSA-rg4c-f6cj-x9w8

References

Exploit 1

Patch 1

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences