1. Ubuntu Security Notices
  2. USN-3648-1

USN-3648-1: curl vulnerabilities

Publication date

16 May 2018

Overview

Several security issues were fixed in curl.

Releases

Packages

  • curl - HTTP, HTTPS, and FTP client and client libraries

Details

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)

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)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
18.04 bionic curl –  7.58.0-2ubuntu3.1
libcurl3-gnutls –  7.58.0-2ubuntu3.1
libcurl3-nss –  7.58.0-2ubuntu3.1
libcurl4 –  7.58.0-2ubuntu3.1
17.10 artful curl –  7.55.1-1ubuntu2.5
libcurl3 –  7.55.1-1ubuntu2.5
libcurl3-gnutls –  7.55.1-1ubuntu2.5
libcurl3-nss –  7.55.1-1ubuntu2.5
16.04 xenial curl –  7.47.0-1ubuntu2.8
libcurl3 –  7.47.0-1ubuntu2.8
libcurl3-gnutls –  7.47.0-1ubuntu2.8
libcurl3-nss –  7.47.0-1ubuntu2.8
14.04 trusty curl –  7.35.0-1ubuntu2.16
libcurl3 –  7.35.0-1ubuntu2.16
libcurl3-gnutls –  7.35.0-1ubuntu2.16
libcurl3-nss –  7.35.0-1ubuntu2.16

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›