USN-3993-1: curl vulnerabilities

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Ubuntu security notices

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curl vulnerabilities


A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04
  • Ubuntu 18.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
Summary


Several security issues were fixed in curl.

Software Description

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


Wenchao Li discovered that curl incorrectly handled memory in the curl_url_set() function. 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 19.04. (CVE-2019-5435)

It was discovered that curl incorrectly handled memory when receiving data from a TFTP server. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-5436)

Update instructions


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

Ubuntu 19.04
curl - 7.64.0-2ubuntu1.1
libcurl3-gnutls - 7.64.0-2ubuntu1.1
libcurl3-nss - 7.64.0-2ubuntu1.1
libcurl4 - 7.64.0-2ubuntu1.1
Ubuntu 18.10
curl - 7.61.0-1ubuntu2.4
libcurl3-gnutls - 7.61.0-1ubuntu2.4
libcurl3-nss - 7.61.0-1ubuntu2.4
libcurl4 - 7.61.0-1ubuntu2.4
Ubuntu 18.04 LTS
curl - 7.58.0-2ubuntu3.7
libcurl3-gnutls - 7.58.0-2ubuntu3.7
libcurl3-nss - 7.58.0-2ubuntu3.7
libcurl4 - 7.58.0-2ubuntu3.7
Ubuntu 16.04 LTS
curl - 7.47.0-1ubuntu2.13
libcurl3 - 7.47.0-1ubuntu2.13
libcurl3-gnutls - 7.47.0-1ubuntu2.13
libcurl3-nss - 7.47.0-1ubuntu2.13

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References


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