Advisory Published

USN-3648-1: curl vulnerabilities

First published: Wed May 16 2018(Updated: )

Dario Weisser discovered that curl incorrectly handled long FTP server command replies. If a user or automated system were tricked into connecting to a malicious FTP server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. (CVE-2018-1000300) Max Dymond discovered that curl incorrectly handled certain RTSP responses. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2018-1000301)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/curl<7.58.0-2ubuntu3.1
7.58.0-2ubuntu3.1
=18.04
All of
ubuntu/libcurl3-gnutls<7.58.0-2ubuntu3.1
7.58.0-2ubuntu3.1
=18.04
All of
ubuntu/libcurl3-nss<7.58.0-2ubuntu3.1
7.58.0-2ubuntu3.1
=18.04
All of
ubuntu/libcurl4<7.58.0-2ubuntu3.1
7.58.0-2ubuntu3.1
=18.04
All of
ubuntu/curl<7.55.1-1ubuntu2.5
7.55.1-1ubuntu2.5
=17.10
All of
ubuntu/libcurl3<7.55.1-1ubuntu2.5
7.55.1-1ubuntu2.5
=17.10
All of
ubuntu/libcurl3-gnutls<7.55.1-1ubuntu2.5
7.55.1-1ubuntu2.5
=17.10
All of
ubuntu/libcurl3-nss<7.55.1-1ubuntu2.5
7.55.1-1ubuntu2.5
=17.10
All of
ubuntu/curl<7.47.0-1ubuntu2.8
7.47.0-1ubuntu2.8
=16.04
All of
ubuntu/libcurl3<7.47.0-1ubuntu2.8
7.47.0-1ubuntu2.8
=16.04
All of
ubuntu/libcurl3-gnutls<7.47.0-1ubuntu2.8
7.47.0-1ubuntu2.8
=16.04
All of
ubuntu/libcurl3-nss<7.47.0-1ubuntu2.8
7.47.0-1ubuntu2.8
=16.04
All of
ubuntu/curl<7.35.0-1ubuntu2.16
7.35.0-1ubuntu2.16
=14.04
All of
ubuntu/libcurl3<7.35.0-1ubuntu2.16
7.35.0-1ubuntu2.16
=14.04
All of
ubuntu/libcurl3-gnutls<7.35.0-1ubuntu2.16
7.35.0-1ubuntu2.16
=14.04
All of
ubuntu/libcurl3-nss<7.35.0-1ubuntu2.16
7.35.0-1ubuntu2.16
=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this advisory?

    The vulnerability ID for this advisory is USN-3648-1.

  • What software is affected by this vulnerability?

    The software affected by this vulnerability is curl, libcurl3-gnutls, libcurl3-nss, and libcurl4.

  • What version of Ubuntu is affected?

    Ubuntu 18.04, Ubuntu 17.10, Ubuntu 16.04, and Ubuntu 14.04 are affected.

  • What is the severity of this vulnerability?

    The severity of this vulnerability is not mentioned in the advisory.

  • How do I fix this vulnerability?

    To fix this vulnerability, update the software to the specified versions mentioned in the advisory.

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