1. Ubuntu Security Notices
  2. USN-3805-1

USN-3805-1: curl vulnerabilities

Publication date

31 October 2018

Overview

Several security issues were fixed in curl.

Releases

Packages

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

Details

Harry Sintonen discovered that curl incorrectly handled SASL
authentication. A remote attacker could use this issue to cause curl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-16839)

Brian Carpenter discovered that curl incorrectly handled memory when
closing certain handles. A remote attacker could use this issue to cause
curl to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-16840)

Brian Carpenter discovered that the curl command-line tool incorrectly
handled error messages. A remote attacker could possibly use this issue to
obtain sensitive information. (CVE-2018-16842)

Harry Sintonen discovered that curl incorrectly handled SASL
authentication. A remote attacker could use this issue to cause curl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-16839)

Brian Carpenter discovered that curl incorrectly handled memory when
closing certain handles. A remote attacker could use this issue to cause
curl to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-16840)

Brian Carpenter discovered that the curl command-line tool incorrectly
handled error messages. A remote attacker could possibly use this issue to
obtain sensitive information. (CVE-2018-16842)

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
18.10 cosmic curl –  7.61.0-1ubuntu2.2
libcurl3-gnutls –  7.61.0-1ubuntu2.2
libcurl3-nss –  7.61.0-1ubuntu2.2
libcurl4 –  7.61.0-1ubuntu2.2
18.04 bionic curl –  7.58.0-2ubuntu3.5
libcurl3-gnutls –  7.58.0-2ubuntu3.5
libcurl3-nss –  7.58.0-2ubuntu3.5
libcurl4 –  7.58.0-2ubuntu3.5
16.04 xenial curl –  7.47.0-1ubuntu2.11
libcurl3 –  7.47.0-1ubuntu2.11
libcurl3-gnutls –  7.47.0-1ubuntu2.11
libcurl3-nss –  7.47.0-1ubuntu2.11
14.04 trusty curl –  7.35.0-1ubuntu2.19
libcurl3 –  7.35.0-1ubuntu2.19
libcurl3-gnutls –  7.35.0-1ubuntu2.19
libcurl3-nss –  7.35.0-1ubuntu2.19

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References

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