CVE-2018-1000300: Buffer Overflow

Published May 24, 2018
·
Updated

curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl < 7.54.1 and curl >= 7.60.0.

Affected Software

6 affected componentsFixes available
haxx curl>=7.54.1<=7.59.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Canonical Ubuntu Linux=18.04
debian/curl
7.74.0-1.3+deb11u137.74.0-1.3+deb11u167.88.1-10+deb12u147.88.1-10+deb12u58.14.1-2+deb13u38.20.0-58.21.0~rc2-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 7.74.0-1.3+deb11u13Fixed in 7.74.0-1.3+deb11u16Fixed in 7.88.1-10+deb12u14Fixed in 7.88.1-10+deb12u5Fixed in 8.14.1-2+deb13u3Fixed in 8.20.0-5Fixed in 8.21.0~rc2-1
  2. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 7.74.0-1.3+deb11u13
  3. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 7.74.0-1.3+deb11u16
  4. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 7.88.1-10+deb12u14
  5. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 7.88.1-10+deb12u5
  6. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 8.14.1-2+deb13u3
  7. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 8.20.0-5
  8. Upgrade

    Upgrade debian/curl to a version that resolves this vulnerability.

    Fixed in 8.21.0~rc2-1
  9. Upgrade

    Upgrade curl to a version that resolves this vulnerability.

    Fixed in 7.60.0

Event History

May 24, 2018
CVE Published
via MITRE·01:00 PM
Data Sourced
via MITRE·01:00 PM
Description
Data Sourced
via NVD·01:29 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·10:45 PM
Description
Feb 20, 2026
Data Sourced
via Ubuntu·03:21 PM
RemedyDescriptionSeverityAffected Software
Jun 16, 2026
Data Sourced
via Debian·10:44 PM
DescriptionAffected Software

Frequently Asked Questions

1

What is the vulnerability ID for this vulnerability?

The vulnerability ID is CVE-2018-1000300.

2

What is the severity of CVE-2018-1000300?

CVE-2018-1000300 has a severity rating of 9.8 (critical).

3

What is the affected software for CVE-2018-1000300?

The affected software for CVE-2018-1000300 is curl versions 7.54.1 to 7.59.0.

4

How can I fix CVE-2018-1000300?

To fix CVE-2018-1000300, update curl to version 7.60.0 or above.

5

Where can I find more information about CVE-2018-1000300?

You can find more information about CVE-2018-1000300 at the following references: [1] [2] [3].

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203